Fourth Regiment Iowa Volunteer Cavalry
Regiment was organized at Camp Harlan, Mount Pleasant September to November 1861.
Regiment lost during service 4 officers and 51 enlisted men killed and mortally wounded and 5 officers and 194 enlisted men by disease.
| Soldier | Age | Rank-Company | Muster Date | Comments |
| Ryan, John H. | 19 | Pvt ~ Co. F | 23 Nov 1861 | |
| Stamm, Andrew N. | 35 | 1st Sgt ~ Co. G | 01 Oct 1862 | promoted 2d LT Mexican War Veteran |