I found Will W. Mosley in 1920 in precinct 4, Fannin Texas district 49; the farm was north of the main road between Pecan Gap and Lodonia. Will was born 1872 in Texas; wife Addie; Alma is 18, Alvis is 16, Lee is 13, Emma is 11, George is 10 and Doesy is 4. Will is a general farmer.

Found a Lee W.Mosley in 1930 Precinct 4 or Red River county Texas, born 1907, in Texas.
hope this gives you some new places to look, good luck cathryn in northwestern Nevada