More Matlocks: Joseph Matlock and Adeline Aiken

Of all my great-grandmother Angeline Matlock Floyd's siblings, this is the family I (and other Floyd/Matlock researchers) know least about. I cannot find Joseph on the 1870 census, and only recently learned his wife's maiden name (from her daughter's death certificate on the Family Search pilot page). Which reminds me, thanks to the Texas death certificates on that website, I now know a lot of the information that was missing for the Martha Amanda Matlock-Emory A. Gracey family (will post an update in the near future).

Joseph R. Matlock
b. Dec 1851, Kentucky
& Adaline “Addie” Aiken
b. Mar 1852, Illinois
d. bef 1920
m. 1878
| Neva Adaline Matlock
| b. 13 Apr 1879, Texas
| d. 5 Apr 1970, Quanah, Hardeman County, Texas
| & Robert Alphaeus Brooks
| b. 24 Oct 1875, Whiteboro, Texas
| d. 3 Oct 1947, Quanah, Hardeman County, Texas
| m. 1908
| Cora B. Matlock
| b. Apr 1885, Texas

Missing information: dates of death for Joseph, Addie, and Cora Matlock.