Looking for any info on my great grandfather Robert Houston McDuffie b. abt 1861 in Tx. He married Margaret Virginia Freeman b 1867 Ark d 1951 TX. They had four children: Walter Henry Lee McDuffie (my grandfather) b.1886 Ind Terr, OK- d.1967 TX; Milton; Alven; Maude.
I can't find anything before 1900. I even have a application for a search of census records filled out by my grandfather (Walter), and the 1880 blank was left empty.