Editing Glenn L. Martin Company

{{Short description|Defunct American aerospace manufacturer (1917-61)}}
{{Redirect|Martin Aircraft|the current New Zealand Martin Aircraft Company, its Jetpack, and designer Glenn Neal Martin|Martin Jetpack}}
{{Infobox company
| name = Glenn L. Martin Company
| logo = Glenn_L._Martin_Company_logo.svg
| image = 
| image_caption = 
| former_name = 
| type = 
| industry = [[Aerospace]]
| fate = Merged with [[American-Marietta Corporation]]<br />later merged into [[Lockheed-Martin Corporation]]
| predecessor = <!-- or: | predecessors = -->
| successor = [[Martin Marietta]]
| founded = {{Start date and age|1917}}
| founder = [[Glenn L. Martin]]
| defunct = {{End date|1961}}
| hq_location_city = [[Santa Ana, California]]{{Citation needed|reason=claim contradicts article without citation|date=January 2023}}
| hq_location_country = United States
| area_served = <!-- or: | areas_served = -->
| key_people = 
| products = [[Aircraft]]
| owner = <!-- or: | owners = -->
| num_employees = 
| num_employees_year = <!-- Year of num_employees data (if known) -->
| parent = 
| website = <!-- {{URL|example.com}} -->
}}
[[File:B-26 Marauder.jpg|thumb|right|The [[Martin B-26 Marauder]], a bomber produced by Martin during World War II]]

The '''Glenn L. Martin Company''', also known as '''The Martin Company'''<!-- bolded per [[WP:MOSBOLD]] as a redirect target --> from 1917 to 1961, was an American [[aircraft]] and [[aerospace industry|aerospace]] manufacturing company founded by aviation pioneer [[Glenn L. Martin]]. The Martin Company produced many important aircraft for the defense of the US and allies, especially during [[World War II]] and the [[Cold War]]. During the 1950s and 1960s, the Martin Company moved from the aircraft industry into the [[guided missile]], [[space exploration]], and [[outer space|space utilization]] industries.

In 1961, the Martin Company merged with [[American-Marietta Corporation]], a large industrial conglomerate, forming the [[Martin Marietta]] corporation. In turn, Martin Marietta in 1995 merged with aerospace giant [[Lockheed Corporation]] to form the [[Lockheed Martin]] corporation.<ref name="Lockheed_1910s">[http://www.lockheedmartin.com/aboutus/history/index.html "Lockheed Martin History."] {{webarchive|url=https://web.archive.org/web/20110403092902/http://www.lockheedmartin.com/aboutus/history/index.html |date=2011-04-03 }} ''lockheedmartin.com.'' Retrieved: July 30, 2011.</ref><ref name="fuhist">[http://www.fundinguniverse.com/company-histories/Lockheed-Martin-Corporation-Company-History.html Lockheed Martin Company history."] {{Webarchive|url=https://web.archive.org/web/20120417221322/http://www.fundinguniverse.com/company-histories/Lockheed-Martin-Corporation-Company-History.html |date=2012-04-17 }} ''fundinguniverse.com.'' Retrieved: July 30, 2011.</ref>

==History==

===Origins===
Glenn L. Martin Company was founded by aviation pioneer Glenn Luther Martin on August 16, 1912.<ref name="cent_of_flight">Rumerman, Judy. [http://www.centennialofflight.gov/essay/Aerospace/earlyU.S/Aero1.htm "The First U.S. Aircraft Manufacturing Companies."] {{webarchive|url=https://web.archive.org/web/20070930030455/http://www.centennialofflight.gov/essay/Aerospace/earlyU.S/Aero1.htm |date=2007-09-30 }} ''U.S. Centennial of Flight Commission,'' 2003.  Retrieved: July 30, 2011.</ref> He started the company building military training aircraft in [[Santa Ana, California]], and in September 1916, Martin accepted a merger offer from the [[Wright Company]], creating the [[Wright-Martin]] Aircraft Company.<ref name="Lockheed_1910s"/> This merger did not function well, so Glenn Martin left to form a second Glenn L. Martin Company on September 10, 1917. This new company was headquartered in [[Cleveland, Ohio]].<ref name="cent_of_flight" />

===Mexican Revolution===
[[File:Avion-sonora-martin-pusher.jpg|thumb|The ''Sonora'', a Martin Pusher single-seater, saw combat in the [[Mexican Revolution]] (1913)]]
In 1913, Mexican insurgents from the northwestern state of [[Sonora]] bought a single-seater Martin Pusher biplane in [[Los Angeles]] with the intention of attacking federal naval forces that were attacking the port of [[Guaymas]]. The aircraft was shipped on May 5, 1913, in five crates to [[Tucson, Arizona]], via [[Wells Fargo|Wells Fargo Express]], and then moved through the border into Mexico to the town of [[Naco, Sonora]]. The aircraft, named ''Sonora'' by the insurgents, was reassembled there and fitted with a second seat for a bomber position.{{citation needed|date=January 2021}}

The ''Sonora'', armed with rudimentary {{convert|3|in|adj=on|0}} [[pipe bomb]]s, performed the first known air-to-naval bombing runs in history.{{citation needed|date=January 2021}}

===World War I===
[[File:MartinTT.jpg|thumb|A Glenn Martin TT with Sergeant Broeckhuysen of the [[Royal Netherlands East Indies Army Air Force]] seated in the middle with factory mechanics (1917)]]
For the [[Netherlands East Indies]], several planes were delivered, with the first flight on November 6, 1915. It involved two Type TEs, six Type TTs, and eight Type Rs. Martin's first big success came during [[World War I]] with the [[Martin MB-1|MB-1]] [[bomber]],<ref name="Cleveland">[http://ech.case.edu/ech-cgi/article.pl?id=GLMC , "Glenn L. Martin Co."] {{Webarchive|url=https://web.archive.org/web/20071224040038/http://ech.case.edu/ech-cgi/article.pl?id=GLMC |date=2007-12-24 }} ''The Encyclopedia of Cleveland History''. Retrieved: July 30, 2011.</ref> a large [[biplane]] design ordered by the [[United States Army]] on January 17, 1918. The MB-1 entered service after the end of hostilities. A follow-up design, the [[Martin NBS-1|MB-2]], proved successful;<ref name="Cleveland"/> 20 were ordered by the [[U.S. Army Air Service|Army Air Service]], the first five of them under the company designation and the last 15 as the NBS-1 (Night Bomber, Short range). Although the War Department ordered 110 more, it retained the ownership rights of the design, and put the order out for bid. The production orders were given to other companies that had bid lower, [[Curtiss Aeroplane and Motor Company|Curtiss]] (50), L.W.F. Engineering (35), and [[Aeromarine]] (25).<ref name="cent_of_flight2">Rumerman, Judy. [http://www.centennialofflight.gov/essay/Aerospace/Martin/Aero12.htm "Glenn L. Martin Company."] {{webarchive|url=https://web.archive.org/web/20030405234638/http://www.centennialofflight.gov/essay/Aerospace/Martin/Aero12.htm |date=2003-04-05 }} ''U.S. Centennial of Flight Commission, 2003. Retrieved: July 30, 2011.</ref> The design was the only standard bomber used by the Air Service until 1930, and was used by seven squadrons of the Air Service/Air Corps: Four in Virginia, two in Hawaii, and one in the Philippines.

===Inter-war years===
In 1924, the Martin Company underbid Curtiss for the production of a Curtiss-designed scout bomber, the [[Curtiss CS|SC-1]], and ultimately Martin produced 404 of these. In 1929, Martin sold the Cleveland plant and built a new one in [[Middle River, Maryland]], northeast of [[Baltimore]].

During the 1930s, Martin built flying boats for the [[U.S. Navy]], and the innovative [[Martin B-10]] bomber for the Army.<ref>Herman, Arthur. ''Freedom's Forge: How American Business Produced Victory in World War II,'' p. 6, Random House, New York, NY. {{ISBN|978-1-4000-6964-4}}.</ref> The Martin Company also produced the noted [[China Clipper]] [[flying boat]]s used by [[Pan American Airways]] for its [[transpacific]] [[San Francisco]] to the [[Philippines]] route.

===World War II===
During World War II, a few of Martin's most successful designs were the [[Martin B-26 Marauder|B-26 Marauder]]<ref>Herman, Arthur. ''Freedom's Forge: How American Business Produced Victory in World War II,'' p. 238, Random House, New York, NY. {{ISBN|978-1-4000-6964-4}}.</ref>  and [[Martin Maryland|A-22 Maryland]] bombers, the [[Martin PBM Mariner|PBM Mariner]] and [[Martin JRM Mars|JRM Mars]]<ref>Herman, Arthur. ''Freedom's Forge: How American Business Produced Victory in World War II,'' p. 277, Random House, New York, NY. {{ISBN|978-1-4000-6964-4}}.</ref><ref>Goebel, Greg. {{usurped|1=[https://web.archive.org/web/20171201043359/http://www.vectorsite.net/avmars.html#m5 "The Martin Mariner, Mars, & Marlin Flying Boats."]}} ''Air Vectors.'' Retrieved: July 30, 2011.</ref> flying boats, widely used for [[air-sea rescue]], [[anti-submarine warfare]] and transport. The 1941 [[Office for Emergency Management]] film ''[[Bomber (1941 film)|Bomber]]'' was filmed in the Martin facility in Baltimore, and showed aspects of the production of the B-26.<ref name="archive">{{cite web |url=https://archive.org/details/gov.archives.arc.38638 |title=National Archives and Records Administration |access-date=2012-11-21 |work=archive.org}}</ref>

Martin ranked 14th among U.S. corporations in the value of wartime production contracts.<ref>[[Whiz Kids (Department of Defense)|Peck, Merton J.]] & [[Frederic M. Scherer|Scherer, Frederic M.]] ''The Weapons Acquisition Process: An Economic Analysis'' (1962) [[Harvard Business School]] p.619</ref> The company built 1,585 B-26 Marauders and 531 [[Boeing B-29 Superfortress]]es at its [[Glenn L. Martin Bomber Plant|new bomber plant]] in [[Nebraska]], just south of [[Omaha, Nebraska|Omaha]] at [[Offutt Air Force Base|Offutt&nbsp;Field]]. Among the B-29s manufactured there were all the [[Silverplate]] aircraft, including ''[[Enola Gay]]'' and ''[[Bockscar]]'', which dropped the two war-ending [[atomic bomb]]s on [[Hiroshima]] and [[Nagasaki]], Japan.<ref>Herman, Arthur. ''Freedom's Forge: How American Business Produced Victory in World War II,'' pp. 330–1, Random House, New York, NY. {{ISBN|978-1-4000-6964-4}}.</ref>

===Postwar===
[[File:XB-48 342-C-K-004490.jpg|thumb|XB-48 bomber prototype, in front of Martin Company hangar, {{Circa|1947}}]]
On April 22, 1957, the company name was changed to the Martin Company.<ref>{{cite book |last=Harwood |first=William B. |title=Raise Heaven and Earth |url=https://archive.org/details/raiseheavenearth00harw |url-access=registration |publisher=Simon & Schuster |date=1993 |isbn=0-67-174998-6 |page=[https://archive.org/details/raiseheavenearth00harw/page/333 333]}}</ref>

Postwar efforts in aeronautics by the Martin Company included two unsuccessful prototype bombers, the [[Martin XB-48|XB-48]] and the [[Martin XB-51|XB-51]], the marginally successful [[Martin AM Mauler|AM Mauler]], the successful [[English Electric Canberra|B-57 Canberra]] [[tactical bomber]]s, the [[Martin P5M Marlin|P5M Marlin]] and [[Martin P6M SeaMaster|P6M SeaMaster]] [[seaplane]]s, and the [[Martin 2-0-2]] and [[Martin 4-0-4]] twin-engined passenger airliners.

[[File:Vanguard rocket vanguard1 satellite.jpg|thumb|right|upright|The [[Vanguard rocket]], designed and built by Martin for [[Project Vanguard]], prepares to launch ''[[Vanguard 1]]''.]]
The Martin Company moved into the [[aerospace manufacturing]] business. It produced the [[Vanguard rocket]], used by the American space program as one of its first [[satellite]] [[booster rocket]]s as part of [[Project Vanguard]]. The Vanguard was the first American [[space exploration]] rocket designed from scratch to be an orbital launch vehicle — rather than being a modified [[ballistic missile]] (such as the U.S. Army's [[Juno I]]). Martin also designed and manufactured the huge and heavily armed [[Titan I]] and [[LGM-25C Titan II]] [[intercontinental ballistic missile]]s (ICBMs). Martin Company of Orlando, Florida, was the prime contractor for the US Army's Pershing missile.<ref name="Pershing history">{{cite book|last=Jolliff|first=Elizabeth C.|title=History of the Pershing Weapon System|date=20 May 1974|publisher=U.S. Army Missile Command|location=Redstone Arsenal, Alabarrla 35809|pages=288}}</ref>

The Martin Company was one of two finalists for the [[command and service module]]s of the [[Apollo Program]]. The [[National Aeronautics and Space Administration]] (NASA) awarded the design and production contracts for these to the [[North American Aviation]] Corporation.

The Martin Company went further in the production of larger booster rockets for NASA and the [[U.S. Air Force]] with its [[Titan III]] series of over 100 rockets produced, including the [[Titan IIIA]], the more-important [[Titan IIIC]], and the [[Titan IIIE]]. Besides hundreds of Earth satellites, these rockets were essential for the sending to [[outer space]] of the two [[space probe]]s of the [[Voyager Project]] to the [[outer planets]], the two space probes of the [[Viking Project]] to [[Mars]], and the two [[Helios probes]] into low orbits around the Sun (closer, even, than [[Mercury (planet)|Mercury]]).

Finally, the US Air Force required a booster rocket that could launch heavier satellites than either the Titan IIIE or the [[Space Shuttle]].  The Martin Company responded with its extremely large [[Titan IV]] series of rockets. When the Titan IV came into service, it could carry a heavier payload to orbit than any other rocket in production. Besides its use by the Air Force to launch its sequence of very heavy [[reconnaissance satellite]]s, one Titan IV, with a powerful [[Centaur (rocket)|Centaur rocket]] upper stage, was used to launch the heavy [[Cassini space probe]] to the planet [[Saturn]] in 1997. The Cassini probe orbited Saturn from 2004 to 2017, successfully returning mountains of scientific data.

The halting of production of the Titan IV in 2004 brought to an end production of the last rocket able to carry a heavier payload than the Space Shuttle, which itself ended in 2011.

The Martin Company merged with the American-Marietta Corporation, a chemical-products and construction-materials manufacturer, in 1961, to form the [[Martin Marietta Corporation]]. In 1995, Martin Marietta, then the nation's third-largest defense contractor, merged with the [[Lockheed Corporation]], then the nation's second-largest defense contractor, to form the [[Lockheed Martin Corporation]], becoming the largest such company in the world.<ref name="fuhist" />

The Martin Company employed many of the founders and chief engineers of the American aerospace industry, including:

* [[Dandridge M. Cole]] – moved on as aerospace engineer at [[General Electric]]
* [[Donald Wills Douglas, Sr.|Donald Douglas]] – founder of [[Douglas Aircraft]], later as [[McDonnell Douglas]] (now part of [[Boeing]])
* [[Lawrence Dale Bell]] – founded [[Bell Aircraft]], now [[Bell Helicopter]]
* [[James S. McDonnell]] – founded [[McDonnell Aircraft]], later as [[McDonnell Douglas]] (now part of Boeing)
* [[James H. Kindelberger|J.H. "Dutch" Kindleberger]] – CEO and chairman of North American Aviation
* [[Hans Multhopp]] – concepts used to create [[NASA]]'s [[Space Shuttle]]
* [[C. A. Van Dusen]] – [[Brewster Aeronautical Corporation]]

Martin also taught [[William Boeing]] how to fly and sold him his first airplane.

==Products==

=== Aircraft ===
[[File:Martin P3M-2 at NAS Pensacola 1930s.jpeg|right|thumb|Martin P3M-2]]
[[File:Pro Air Martin 404 N255S.jpg|thumb|An abandoned Pro Air Martin 4-0-4 N255S in Paris, Texas]]

{| class="wikitable sortable"
|-
! Model name
! First flight
! Number built
! Type

|-
|align=left| [[Martin MB-1]]
|align=center| 1918
|align=center| 20
|align=left| Twin piston-engined biplane bomber
|-
|align=left| [[Martin NBS-1]]
|align=center| 1920
|align=center| 130
|align=left| Twin piston-engined biplane bomber
|-
|align=left| [[Martin MS]]
|align=center| 1923
|align=center| 6
|align=left| Single piston-engined biplane scout
|-
|align=left| [[Martin N2M]]
|align=center| 1924
|align=center| 1
|align=left| Prototype single piston-engined biplane trainer
|-
|align=left| [[Martin MO]]
|align=center| 1922
|align=center| 36
|align=left| Single piston-engined monoplane observation airplane
|-
|align=left| [[Martin T3M]]
|align=center| 1926
|align=center| 124
|align=left| Single piston-engined biplane torpedo bomber
|-
|align=left| [[Martin T4M]]
|align=center| 1927
|align=center| 103
|align=left| Single piston-engined biplane torpedo bomber
|-
|align=left| [[Martin BM]]
|align=center| 1929
|align=center| 33
|align=left| Single piston-engined biplane torpedo bomber
|-
|align=left| [[Martin XT6M]]
|align=center| 1930
|align=center| 1
|align=left| Prototype single piston-engined biplane torpedo bomber
|-
|align=left| [[Martin PM]]
|align=center| 1930
|align=center| 55
|align=left| Twin piston-engined biplane flying boat patrol airplane
|-
|align=left| [[Martin XP2M]]
|align=center| 1931
|align=center| 1
|align=left| Prototype triple piston-engined monoplane flying boat patrol bomber
|-
|align=left| [[Martin P3M]]
|align=center| 1931
|align=center| 9
|align=left| Twin piston-engined monoplane flying boat patrol bomber
|-
|align=left| [[Martin B-10]]
|align=center| 1932
|align=center| 348
|align=left| Twin piston-engined monoplane bomber
|-
|align=left| [[Martin M-130]]
|align=center| 1934
|align=center| 3
|align=left| Quadruple (quad) piston-engined monoplane flying boat airliner
|-
|align=left| [[Martin 146]]
|align=center| 1935
|align=center| 1
|align=left| Prototype twin piston-engined monoplane bomber
|-
|align=left| [[Martin M-156]]
|align=center| 1937
|align=center| 1
|align=left| Quad piston-engined monoplane flying boat airliner
|-
|align=left| [[Martin PBM Mariner]]
|align=center| 1939
|align=center| 1,366
|align=left| Twin piston-engined monoplane flying boat patrol bomber
|-
|align=left| [[Martin 167 Maryland]]
|align=center| 1939
|align=center| 450
|align=left| Twin piston-engined monoplane bomber
|-
|align=left| [[Martin B-26 Marauder]]
|align=center| 1940
|align=center| 5,288
|align=left| Twin piston-engined monoplane bomber
|-
|align=left| [[Martin 187 Baltimore]]
|align=center| 1941
|align=center| 1,575
|align=left| Twin piston-engined monoplane bomber
|-
|align=left| [[Martin JRM Mars]]
|align=center| 1942
|align=center| 7
|align=left| Quad piston-engined monoplane flying boat transport
|-
|align=left| [[Boeing B-29 Superfortress]]
|align=center| 1944
|align=center| 536
|align=left| Quad piston-engined monoplane bomber
|-
|align=left| [[Martin AM Mauler]]
|align=center| 1944
|align=center| 151
|align=left| Single piston-engined monoplane attack airplane
|-
|align=left| [[Martin P4M Mercator]]
|align=center| 1946
|align=center| 21
|align=left| Twin piston-engined monoplane patrol bomber
|-
|align=left| [[Martin 2-0-2]]
|align=center| 1946
|align=center| 47
|align=left| Twin piston-engined monoplane airliner
|-
|align=left| [[Martin XB-48]]
|align=center| 1947
|align=center| 2
|align=left| Prototype six-jet-engined monoplane bomber
|-
|align=left| [[Martin 3-0-3]]
|align=center| 1947
|align=center| 1
|align=left| Prototype twin piston-engined monoplane airliner
|-
|align=left| [[Martin P5M Marlin]]
|align=center| 1948
|align=center| 285
|align=left| Twin piston-engined monoplane flying boat patrol bomber
|-
|align=left| [[Martin XB-51]]
|align=center| 1949
|align=center| 2
|align=left| Prototype triple jet-engined monoplane bomber
|-
|align=left| [[Martin 4-0-4]]
|align=center| 1950
|align=center| 103
|align=left| Twin piston-engined monoplane airliner
|-
|align=left| [[Martin B-57 Canberra]]
|align=center| 1953
|align=center| 403
|align=left| Twin jet-engined monoplane bomber
|-
|align=left| [[Martin P6M SeaMaster]]
|align=center| 1955
|align=center| 12
|align=left| Quad jet-engined monoplane flying boat patrol bomber
|-
|align=left| [[Martin/General Dynamics RB-57F Canberra]]
|align=center| 1963
|align=center| 21
|align=left| Twin jet-engined monoplane reconnaissance airplane
|-
|align=left| [[Naval Aircraft Factory NO|Martin M2O-1]]
|align=center| 
|align=center| 3
|align=left| Single piston-engined biplane float observation airplane
|-
|align=left| [[Martin XO-4]]
|align=center| N/A
|align=center| 0
|align=left| Single piston-engined biplane observation airplane
|-
|align=left| [[Martin 70]]
|align=center| 
|align=center| ~2
|align=left| Single piston-engined biplane mail plane
|-
|align=left| [[Martin XNBL-2]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt twin piston-engined biplane bomber
|-
|align=left| [[Martin XLB-4]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt twin piston-engined biplane bomber
|-
|align=left| [[Martin XB-16]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt quad piston-engined monoplane bomber
|-
|align=left| [[Martin XB-27]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt twin piston-engined monoplane bomber
|-
|align=left| [[Martin XB-33 Super Marauder]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt twin piston-engined monoplane bomber
|-
|align=left| [[Martin XB-68]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt twin jet-engined monoplane bomber
|-
|align=left| [[Martin 193]]
|align=center| N/A
|align=center| 0
|align=left| Unbuilt six-piston-engined monoplane flying boat transport
|-
|align=left| [[Martin P7M SubMaster]]
|align=center| N/A
|align=center| 0
|align=left| Combined quad piston/twin jet-engined flying boat antisubmarine airplane
|-
|}

===Aircraft engines===
*Martin 333, a four-cylinder inverted in-line piston engine

===Missiles and rockets===
*[[AAM-N-4 Oriole]]
*[[ASM-N-5 Gorgon V]]
*[[MGM-1 Matador]]
*[[MGM-13 Mace]]
*[[MGM-18 Lacrosse]]
*[[MGM-31 Pershing]]
*[[Bold Orion]]
* [[Titan (rocket family)]]
**[[SM-68 Titan]]
**[[HGM-25A Titan I]]
**[[LGM-25C Titan II]]
*[[Viking (rocket)]]

===[[Booster rocket]]s===
*The four-stage [[Vanguard (rocket)|Vanguard rocket]]
*[[Titan II GLV]]
*[[Titan III]]
**[[Titan IIIB]]
**[[Titan IIIC]]
*[[Titan IV]]
*In addition, after the removal of 54 Titan IIs from alert status as [[ICBM]]s in the mid-1980s, about 50 of them were used as satellite launchers by the U.S. Air Force. The rest of them were either scrapped or used as museum pieces.

===Automobile===
*1928 Martin 100 Aerodynamic<ref>{{Cite web|url=https://www.lanemotormuseum.org/collection/cars/item/martin-aerodynamic-1928|title=Martin Aerodynamic- 1928|access-date=2021-04-13|archive-date=2021-04-13|archive-url=https://web.archive.org/web/20210413124206/https://www.lanemotormuseum.org/collection/cars/item/martin-aerodynamic-1928|url-status=live}}</ref>

== See also ==
* [[Glenn L. Martin Maryland Aviation Museum]]
* [[Martin State Airport]]
* [[Lester P. Barlow]]

==References==
{{reflist}}

==External links==
{{commons category|Glenn L. Martin Company}}
* [http://mdairmuseum.org/ Glenn L Martin Maryland Aviation Museum] {{Webarchive|url=https://web.archive.org/web/20140517163603/http://mdairmuseum.org/ |date=2014-05-17 }}
* [http://libarchstor.uah.edu:8081/repositories/2/resources/81 Glenn L. Martin Company Collection, The University of Alabama in Huntsville Archives and Special Collections] {{Webarchive|url=https://web.archive.org/web/20210201081342/http://libarchstor.uah.edu:8081/repositories/2/resources/81 |date=2021-02-01 }}
* {{HAER |survey=MD-136 |id=md1678 |title=Glenn L. Martin Aircraft Company Plant No. 2, 2800 Eastern Boulevard, Middle River, Baltimore County, MD |photos=3 |data=5 |cap=1}}
* {{HAER |survey=MD-136-A |id=md1699 |title=Glenn L. Martin Aircraft Company Plant No. 2, Administration Building |photos=3 |cap=1 |link=no}}
* {{HAER |survey=MD-136-B |id=md1702 |title=Glenn L. Martin Aircraft Company Plant No. 2, Assembly Building |photos=10 |cap=2 |link=no}}
* {{HAER |survey=MD-136-C |id=md1703 |title=Glenn L. Martin Aircraft Company Plant No. 2, Drop Hammer Building |photos=2 |cap=1 |link=no}}
* {{HAER |survey=MD-136-D |id=md1704 |title=Glenn L. Martin Aircraft Company Plant No. 2, Paint Shop |photos=1 |cap=1 |link=no}}

{{Martin aircraft}}

{{DEFAULTSORT:Martin Company, Glenn L.}}
[[Category:Defunct aircraft manufacturers of the United States]]
[[Category:Aviation in Maryland]]
[[Category:Historic American Engineering Record in Maryland]]
[[Category:Rocket engine manufacturers of the United States]]
[[Category:Manufacturing companies established in 1912]]
[[Category:Companies based in Santa Ana, California]]
[[Category:Defunct manufacturing companies based in California]]
[[Category:1912 establishments in California]]
[[Category:Former defense companies of the United States]]
[[Category:Aerospace companies of the United States]]
[[Category:Manufacturing companies disestablished in 1961]]
[[Category:1961 disestablishments in California]]