His father, Benjamin Secor moved the family to Michigan from Goshen, NY in 1844. Thomas was the younger brother of Joseph and James, two of Toledo’s early business leaders.
Secor married Ellen Colgrove of Adrian in 1854 and started a pioneer farm outside of Toledo in Washington Township at the southeast corner of what is now Secor and Central Avenue. The gathering of farmhouses, a general store, schoolhouse, and cemetery near the corner became known as Secorville. Outside of the time he spent with the 130th Ohio Volunteer Infantry during the last year of the Civil War, he lived on his farm from 1854 until his death in 1909. He was a fifty-year member of the Sylvania Lodge of the Masons.