John Alexander Johnston | |
|---|---|
 | |
| Member of the Board of Commissioners of Washington, D.C. | |
| In office January 24, 1910 – July 19, 1913 | |
| President | William Howard Taft |
| Preceded by | Henry Litchfield West |
| Succeeded by | Oliver Peck Newman |
| Personal details | |
| Born | February 22, 1858 Allegheny, Pennsylvania, U.S. |
| Died | January 5, 1940 (aged 81) |
| Resting place | Arlington National Cemetery |
| Political party | Democratic |
| Spouse(s) | Henrietta Vandergrift (1888–1930) Zella McCallister (1932–1936) |
| Alma mater | United States Military Academy |
| Occupation | Military officer |
| Civilian awards | Commander Legion of Honor |
| Military service | |
| Allegiance | United States |
| Branch/service | United States Army |
| Years of service | 1879–1903, 1917–1919 |
| Rank | Brigadier General |
| Commands | 153rd Depot Brigade 34th Division 68th Brigade Northeast Department |
| Battles/wars | World War I |
| Military awards | Distinguished Service Medal |
John Alexander Johnston (22 February 1858 – 5 January 1940) was an American military officer and commissioner of the District of Columbia born in Allegheny, Pennsylvania. He served as a brigadier general during World War I.