- Dates: May 23, 1824-September 13, 1881
- State: Rhode Island
- Highest Rank Attained: Major General
- Principal Commands: North Carolina Expeditionary Force,IX Corps, "Right Wing" Army of the Potomac, Army of the Potomac, Department of the Ohio,
- Principal Battles: First Battle of Bull Run (1861), New Bern & North Carolina coast (1862), Second Battle of Bull Run (1862), Antietam (1862), Fredericksburg (1862), Knoxville Campaign (1863/4), Wilderness (1864), Spotsylvania Court House (1864), Cold Harbor (1864), Petersburg (1864/5)


