Your great-great grandfather was mastin Hill? I am looking for a Mastin Hill born abt.1895 in Missouri. He married Grace Markley in Lawrence co, Mo in 1917. Does any of this match up to your Mastin Hill? By 1920 though Grace Markley was in Arkansas with her Mom Nancy Horn. We don't know what happened only that Mastin and Grace had a son named John waymond Hill born in 1921. Any help would be great. Thanks for your time.