Cyrus Miller was born in 1816 in Alexander, Genesee County, New York.
Cyrus was married to New York native New York native Phoebe Ann (b. 1814) probably in New York, and they had at least four children: John (b. 1840), Roxana (b. 1842), Martha (b. 1844) and Rufus (*b. 1846). Sometime before 1840 they settled in Pennsylvania and between 1842 and 1846 moved on to Michigan. By 1850 Cyrus and his family were living on a farm in Ravenna, Ottawa County, and by 1860 he and his wife were residing in Tallmadge, Ottawa County. Also living with Cyrus was his newly married daughter Rozanna and her husband Oscar Robinson as well as a blacksmith named John Richberg, who wold also join the Third Michigan infantry. Two houses away lived Orlando Rowe and he too would join the Third Michigan.
Cyrus stood 5’10” with hazel eyes, brown hair and a fair complexion and was a 45-year-old farmer living with his wife Phoebe and John Richberg (who would enlist in Company B) in Tallmadge when he enlisted in Company I on November 16, 1861, at Grand Rapids for 3 years, and was mustered on December 23 at Detroit. Sometime during the first two weeks of March, 1862, Cyrus suffered a fall which injured his “left hip joint” making it impossible for him to fully rotate the leg. He was subsequently sent to the Patent Office hospital in Washington, DC, where he was discharged on June 24, 1862, for “chronic rheumatism (sciatica) of several months’ standing” which was aggravated by his accident.
Cyrus returned to Michigan. By 1870 he was working as a farm laborer and living with his wife in Lamont, Tallmadge Township, Ottawa County. In 1880 he was working as a farmer and living with his wife Phoebe Ann in Lamont. He was still living in Lamont, Ottawa County in 1888 and 1890.
He was probably married a second time to one Electa C.
In 1886 he applied for and received a pension (no. 360424).
Cyrus died on January 22, 1894, and was possibly buried in Lamont, Ottawa County.
In January of 1895 his widow was living in Michigan, when she applied for and received a pension (no. 443583).