In the 1900 census of Rockwall Co, Texas, I found a Thomas A. Phagan born Oct 1832 Georgia, his parents born Ireland. In Precinct 2, community called Heath, ED 85 p 11B.Thomas was 69 years old in 1900 and widowed. He was listed as a 'grandfather' in the home of John Lemley and wife Florence.
John Lemley was born 1873 in Texas but his parents born Ala. Florence was born 1879 in Texas, her father born N. C., and mother born N. C. or S. C.
I'm guessing that Thomas A. Phagan was a maternal grandfather but don't know if he was John Lemley's maternal grandfather or Florence's. I am mainly researching the Lemley family.