Portrait of John M. Oliver, 1861-1865. Monroe County. Entered service in company A, Fourth Infantry, at organization, as First Lieutenant, June 20, 1861, at Adrian, for 3 years, age 33. Commissioned to date May 16, 1861. Mustered June 20, 1861. Commissioned Captain, company F, Sept. 25, 1861. Resigned March 15, 1862. Re-entered service in Fifteenth Infantry as Colonel, at organization. Commissioned Jan. 15, 1862. Mustered March 13, 1862. Commanding Second Brigade, Sixth Division, May and June, 1862, and Sept. and Oct., 1862. Commandin Post and Garrison March and April, 1863. Commanding Second Brigade, Fourth Division, Aug., 1863. Commanding Third Brigade, Second Division, Fifteenth Army Corps, Oct., Nov., and Dec., 1864. Resigned to accept promostion jan. 12, 1865. appointed Brigadier General, Volunteers Jan. 12, 1865. Brevet Major General, Volunteers, March 13, 1865, for faithful, efficient and gallant services during the war. Mustered out Aug. 24, 1865. (Descriptive Roll Fifteenth Michigan Volunteers).