United States Regiments & Batteries > U.S. Regulars
The 4th United States Cavalry Regiment lost 3 officers and 59 enlisted men killed and mortally wounded and 1 officer and 108 enlisted men to disease during the Civil War.
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1861
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| Originally designated as 1st United States Cavalry Regiment. (see 1861 service as 1st Cavalry Regiment) Most of the regiment was in the Western Theater, but Companies A and E moved to the Eastern Theater. Company A was under the command of First Lieutenant Thomas H. McCormack and Company E under the command of Captain James B. McIntyre (USMA ’53), who was in overall command of the detachment. | |
| August 3 | Redesignated as 4th United States Cavalry. Companies A and E attached to Headquarters, Army of the Potomac |
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1862
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| April – August | Peninsula Campaign |
| April 5-May 4 | Siege of Yorktown |
| June 25-July 1 | Seven days before Richmond |
| June 27 | Gaines’ Mill |
| July 1 | Malvern Hill |
| September 6-22 | Maryland Campaign |
| September 16-17 |
Battle of Antietam |
| November | Joined Regiment in Tennessee, 1862. |