I put Seth in the search and came up with an Alpin family in Alabama. That looks like your folks. It is Descendants of William Floyd Alphin submitted by Maggie Highsmith.In case you can't get to it..it lists children..Henry W born 1877, James P born, 1877 twins? and William D born 1885 (in Mississippi). Henry married Mary J.their children.. Willie D,1900; Noah S,1903; Albert D,1905; Maime, 1910; Mary T, 1912;Henry T....James married Nancy L, their children..Della C, 1903;Alpha L,1906; Ernest B,1909; Bienka, 1911; Neddie E 1914; Opal P,1915; Jas, 1917... William married Avie R.their children, Eunice, 1914; Howard, 1916; Seth M, 1919.It is www.alabamagenealogy.org/covington2/Alpin/WFGed.HtmTry that.