Portrait of David E. Ainsworth, 1861-1865. Ann Arbor. Entered service in company D, Twentieth Infantry, at organization as Second Lieutenant, age 24. Commissioned July 29, 1862. Mustered Aug. 18, 1862. Commissioned First Lieutenant Jan. 26, 1863. Mustered Feb. 29, 1863. Killed in action at Spottsylvania, Va., May 12, 1864. (Descriptive Roll Twentieth Michigan Volunteers).
