Willard Main was born about 1821, probably in Pennsylvania.
Willard and Albert Main (brothers or cousins) left Pennsylvania and probably settled for a time in Canada where Albert was married to Mary Atkinson. They both eventually moved on to Michigan, both settling in Castleton Barry County.
By 1860 Willard had moved to Michigan and was working as a day laborer and living with the Asa Ware family in Castleton, Barry County. Nearby lived one Albert Main (b. c. 1818 in Pennsylvania) and his family, quite possibly his brother or cousin.
Willard stood 5’4” with hazel eyes, brown hair and a fair complexion and was 43 or 54 years old and probably a farmer in Yankee Springs, Barry County when he enlisted in Company B on February 19, 1864, at Grand Rapids for 3 years, and was mustered the same day. He joined the Regiment on March 1 at Culpeper, Virginia, and was probably absent sick when he was transferred to Company E, 5th Michigan Infantry upon consolidation of the 3rd and 5th Michigan Regiments on June 10, 1864. He remained absent sick through December, and probably until he was discharged on June 9, 1865, at Satterlee hospital in Philadelphia, Pennsylvania.
Willard died on July 16, 1865, at Castelton, Barry County, and was buried in Barryville Cemetery, Barry County (Albert Main and his wife are buried in the same lot).