Clark M. Harris of Oakland County, Mich., June 1838 born in New York; May 28, 1861 enlisted at Detroit, Mich. as private, Battery A, 1st Mich. Light Artillery Rgt. Jan. 24, 1862 promoted sergeant; unknown date promoted first sergeant; Sept. 21, 1863 appointed senior 2nd lieutenant; Sept. 5, 1864 appointed senior 1stlt. May 25, 1865 resigned; c.1872 married; as of 1880 and 1900 carpenter at Troy Township, Mich. as of 1890 living in Troy Township, Oakland County. with notation that he had suffered a broken leg during the war and fought at Rich Mountain, WVa., Perryville, Ky. Stone River, Tenn. and Chickamauga, Ga.
wife: Theresa Harris, October 1854 born
Children: son D. Harris, c.1873 born
Effie G. Harris, c.1875 born
son T. J. Harris, January 1877 born
twins Rhoda and Robie Harris, June 1879 born
Fern Harris, January 1892 born
wife & children all born in Michigan
Source: Record of Service of Michigan Volunteers 1861-65; 1880, 1900 US Census; 1890 US Veteran Census
Note: batteries were entitled to two 2nd and two 1stlts. which is why Harris is referred to as "senior."