- Dates: October 15, 1818-May 10, 1885
- State: Ohio
- Highest Rank Attained: Major General
- Principal Commands: Army of Northeastern Virginia, I Corps (Army of the Potomac), III (Army of Virginia), Department of the Pacific
- Principal Battles: First Battle of Bull Run (1861), Second Battle of Bull Run (1862)
Major General Irvin McDowell
The Union's First Commander
Major General Irvin McDowell, USA
Photograph Courtesy of the National Archives & Records AdministrationSuggested Reading
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