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I'll try to find the source materials, but I believe this Francis Yoast was born about 1800, married Nancy Owen(s) around 1819, and died in 1848. Nancy died in 1862 in Bastrop, TX and their children were Peter, Andrew, Francis (aka Frank), John, Mary Jane, Barbara Ann, and Eliza.
I think Francis and Nancy's son Francis (or Frank) was born in Virginia in 1820, married Elizabeth Wolfenbarger around 1849, then remarried Mahalia Litton in 1854.