Ebert apparently didn't die in Chillicothe, you may have looked at the SSDI, which gives "last residence".Combined info from TX Dth Idx 1964-1998 and SSDI:
Ebert Buran(sic) Thomas, b 11 Nov 1907; d 16 Dec 1993 Wilbarger Co, TX; last residence Chillicothe, Hardeman Co, TX; SS card issued in TX.
Fred Otis Thomas, b 24 Jul 1905; d 22 Feb 1968 Hutchinson Co, TX; last residence Borger, Hutchinson Co, TX; SS card issued in TX; single [which also can mean widowed, separated or divorced]
Using Hardeman Co, TX GenWeb archived section, there are 3 births listed for Ebert Burion(sic) Thomas and Lorena/Lorene/Lorenia Turner.Daughters born 1933 & 1939 & son born 1944.
I suggest you look at GenWeb county sites, and GenWeb archived section of the TX GenWeb Project for Hardeman, Hunt and Hutchinson Co, TX, where these people lived/died.See what other records they may have placed on their websites.
You don't say how, or if, these people are related.Or when most of them were born.There is a G.T. Martin who applied for a Confederate Pension in Hunt Co, TX, could that be Gastsey?