Editing Abner Doubleday (section)

==Postbellum career==
After the Civil War, Doubleday mustered out of the volunteer service on August 24, 1865, reverted to the rank of lieutenant colonel, and became the colonel of the 35th U.S. Infantry in September 1867. He was stationed in San Francisco from 1869 through 1871 and he took out a patent for the [[cable car (railway)|cable car]] railway that still runs there, receiving a charter for its operation, but signing away his rights when he was reassigned.{{citation needed|date=September 2024}} In 1871, he commanded the [[24th Infantry Regiment (United States)|24th U.S. Infantry]], an all African-American regiment with headquarters at [[Fort McKavett]], [[Texas]].<ref name=TX/> He retired in 1873.

In the 1870s, he was listed in the New York business directory as a lawyer.

Doubleday spent much of his time writing. He published two important works on the Civil War: ''Reminiscences of Forts Sumter and Moultrie'' (1876), and ''Chancellorsville and Gettysburg'' (1882), the latter being a volume of the series ''Campaigns of the Civil War''.<ref name=Eicher/>