Morris R. Reagan moved with his parents to the vicinity of Sevierville, Tennessee in the late 1820's. He was living with his parents at the tim of the 1830 Federal Census of Sevier County and the 1840 Federal Census of Knox County, Tennessee.
Morris R. Reagan migrated with his brother and sisters to the State of Texas after their father's death in 1847. There he was living with John Henninger Reagan, his older brother at the time of the 1850 Federal Census of Henderson County, Texas.
He and his first wife Martha Julia were listed in the 1860 Federal Census of Travis County, Texas. There were two daughters in the household at that time: S. A., age 3; and J., age 1.
Morris R. Reagan was appointed as a 'mail agent for Texas' in September 1861. He was the younger brother of John H. Reagan, Postmaster General.
In the 'Annals of Travis County and of the City of Austin' by Frank Brown, it is recorded that Morris R. 'resided about two and a half miles South of town, at the Terrill place' and he 'accidently stepped off the gallery, at night, and was so seriously injured that he died a few days thereafter.'
Source: 'Smoky Mountain Clans', Donald B. Reagan, 1978, p 8, 12. 'The Book of Ragan/Reagan', Donald B. Reagan, 1993, p 47, 56, 57.