"Indian Territory" . . . . . "Douglas Cooper" . . "1846" . . . . . "1815" . . . . "Bureau of Indian Affairs" . . "Gen. Cooper" . . . . "United States of America" . . . "Cooper, Douglas H." . . . . . . . . . . . . . "1st Choctaw and Chickasaw Mounted Rifles" . . . . . "Douglas H. Cooper" . . . . . . . . . . . "1879" . . . "Brigadier General Douglas Cooper" . . . . . . . . . . . . "Brigadier General Douglas H. Cooper" . "Douglas H. Cooper" . . . . . . "Douglas ''Hancock'' Cooper" . .