From your posting it sounds like your only hope is to reach someone with direct information on the family.I live in Greenville, TX 100 miles or so from Whita Falls (Clay County) but, as you likely know, records were kept locally in that time so, if they burned, they are gone.The only other possiblity would be newspaper records which might make some mention of an individual.However, newspaper mentions don't often reveal a married woman's maiden name.
We have a very good genealogical library in Greenville.I'll ask one of the senior researchers about other records that might exist - but it sounds like you are quite aware of existing records.
CFA has the following information on your family.I'm a bit of a buff on updates and verifications of CFA.Does the information below agree with your knowledge of the family?
ABRAHAM CHURCHILL (WILLIAMS, JOSEPH, BENJAMIN, BENJAMIN, WILLIAM, JOHN).Born in Herrick, Pa., Jan. 16, 1821.Lived at Lenoxville, Pa.Married, in Susquehanna County, Pa., Feb. 26, 1845, MARGARET CLARKSON, born Feb. 2, 1825.
1193 I. CARVASSO,b. Dec. 5, 1845.
II. ABRAHAM WILLIAMS,b. Aug. 22, 1847;d. July 30, 1850.
1194 III. WOOSTER BEACH,b. Oct. 11, 1849. He was living Tresco, Pa., in 1899.
IV. ISABELLA BATHSHEBA,b. Jan. 18, 1852.
1195 V. ABRAHAM WILLIAMS,b. Dec. 22, 1855.
VI. MALVINA ELLA,b. Feb. 3, 1864;d. May 8, 1872.