Wendy, have you tried other names for Jonah? On son Clayton's DC his name is Jonathan; 1880 census he is Joseph. Clayton d 2-6-1936 Bellaire [Richland Twp] bur Davis Cem
1880 Richland Twp, Belmont Co OH THOMPSON Joseph 25 OH - -; labor Margaret E 21 OH OH OH Eliza J 5 OH OH OH
1900 Jonah's son, Robert is living with his 1/2 sis Eliza Jane[CROOKS]THORNTON; b 1-19-1875; d 8-67-1938 bur Farmington Cemetery, Pease Twp; father James CROOKS Clayton is next door with John & Mary HELD.
7-31-1874 James CROOKS m. Margaret E MC GARRY, Belmont OH 4-21-1880 Jonah THOMPSON m. Margaret MC GEARY, Belmont OH
Most all of the above b Blaine, Belmont OH Alfred K [Kinsey] MC GARY b. 3-4-1858 Blaine; d 11-26-1920 Richland Twp; bur Linwood Cem, Blaine. Parents not listed.
Maybe one of these cemeteries is where your Margaret & Minnie are bur.