Editing Benjamin Henry Latrobe (section)

===Philadelphia===
[[File:Birch2ndbankpa.jpg|thumb|[[Bank of Pennsylvania]], Philadelphia. Engraving by [[William Russell Birch]].]]
By the time he arrived in Philadelphia, Latrobe's two friends, Scandella and Volney, had left due to concerns regarding the [[Alien and Sedition Acts]], but Latrobe made friends with some of their acquaintances at the [[American Philosophical Society]]. Latrobe submitted several papers to the society, on his geology and natural history observations, and became a member of the society in 1799.<ref>{{Harvnb|Hamlin|1955|p=133}}</ref><ref>{{Cite web|title=APS Member History|url=https://search.amphilsoc.org/memhist/search?creator=Benjamin+H.+Latrobe&title=&subject=&subdiv=&mem=&year=&year-max=&dead=&keyword=&smode=advanced|access-date=2021-03-31|website=search.amphilsoc.org}}</ref> With his charming personality, Latrobe quickly made other friends among the influential financial and business families in Philadelphia, and became close friends with [[Nicholas Roosevelt (inventor)|Nicholas Roosevelt]], a talented steam-engine builder who would help Latrobe in his waterworks projects.<ref>{{Harvnb|Hamlin|1955|pp=134–145}}</ref>

Latrobe's first major project in Philadelphia was to design the Bank of Pennsylvania, which was the first example of [[Greek Revival]] architecture in the United States. It was demolished in 1870.<ref name="philabldgs">{{Philadelphia Architects and Buildings |ar=25618 |Latrobe, Benjamin Henry (1764-1820)}}</ref> This commission is what convinced him to set up his practice in Philadelphia, where he developed his reputation.<ref name="tatum-p59">{{harvnb|Tatum|1961|p=59}}</ref>

Latrobe also was hired to design the [[Center Square Water Works]] in Philadelphia. The Pump House, located on the common at Broad and Market Streets (now the site of [[Philadelphia City Hall]]), was designed by Latrobe in a Greek Revival style.<ref>{{harvnb|Tatum|1961|p=58}}</ref> It drew water from the [[Schuylkill River]], {{convert|1|mi|km|adj=on}} away, and contained two steam engines that pumped it into wooden tanks in its tower. Gravity then fed the water by wooden mains into houses and businesses. Following his work on the Philadelphia water works project, Latrobe worked as an engineer of the [[Chesapeake and Delaware Canal]].<ref name="Formwalt 1977 388"/>

In addition to Greek Revival designs, Latrobe also used [[Gothic Revival architecture|Gothic Revival]] designs in many of his works, including the 1799 design of [[Sedgeley]], a country mansion in Philadelphia.<ref>{{harvnb|Tatum|1961|p=75}}</ref> The Gothic Revival style was used in Latrobe's design of the Philadelphia Bank building as well, which was built in 1807 and demolished in 1836.<ref name="tatum-p76">{{harvnb|Tatum|1961|p=76}}</ref> As a young architect, [[Robert Mills (architect)|Robert Mills]] worked as an assistant with Latrobe from 1803 until 1808 when he set up his own practice.<ref name="tatum-p64">{{harvnb|Tatum|1961|p=64}}</ref>

While in Philadelphia, Latrobe married Mary Elizabeth Hazlehurst (1771–1841), in 1800.<ref name="philabldgs"/> The couple had several children together.