I am having a very difficult time finding my husbands grandparent. Dock is a mullato in the census for 1910 and 1920 but died in southern oklahoma. I cannont find any information on him he was born in texas, red river close to clarksville and moved to mccurtain county. his children went to school at the Black school (elliots academy) in Valliant OK. any help would be appreciated. Mary is burried in Clear Creek Cemetery in valliant