William H. Tillotson was born in 1835, in New York.
By 1860 William had moved to Michigan and was working as a farm laborer and/or living with the Pease family in Otisco, Ionia County. (There was one Charles Tillotson or Tillitson, born c. 1832 in New York, living with his wife and child in Easton, Ionia County in 1860.)
William stood 5’9” with blue eyes, light hair and a light complexion and was a 26-year-old farmer possibly living in Otisco, Ionia County when he enlisted in Company H on February 28, 1862, at Saranac, Ionia County for 3 years, crediting Muskegon County. He was reported AWOL in March and April, and was discharged for disability on May 30, 1862.
There is no further record and no pension seems to be available.
There was a William Kellogg Tillotson, born November 13, 1835, in Wayne County, New York, the son of Matthew Norton (1800-1851) and Wealthy Ann (Annable, 1808-1885). He married Michigan or Connecticut native Helen Beach (b. 1840), possibly in Michigan, on September 8, 1861, and they had at least four children: Norton Beach (b. 1864), Addie (b. 1866), Lucy Beach (b. 1867) and John Beach (b. 1873). William K. served as lieutenant in the Fifth Michigan infantry during the war. He was living in Owosso, Shiawassee County in 1867, but by 1870 he was working as a hardware merchant and living with his wife and children in Detroit’s Fifth Ward; his mother was also living with them as well. By 1873 he was back in Owosso. By 1880 his mother was living with her son Dan Tillotson in East Saginaw, Saginaw County. In 1866 he applied for and received a pension (no. 73809). He eventually moved back to New York. William died on June 30, 1914, in New York City.In August of 1914 his widow was living in New York when she applied for and received a pension (no. 797731).
There is a civil war veteran named W. C. Tillotson reportedly buried in Lafayette cemetery, Gratiot County, Michigan.