Culberson was born 2 Feb 1875 in Olney, Atoka, Choctaw Nation, Indian Territory[2], the son of John Sealy and Susan Jefferson.
The sources listed from the “Oklahoma Applications for Allotment, Five Civilized Tribes, 1899-1907” show the Oklahoma and Indian Territory, Land Allotment Jacket for Five Civilized Tribes, application for allotment affidavit, Chickasaw Citizenship Certificate. [3][4][5]
Research Notes
It appears that Fanny Roby and Jancie Sealy is in fact the same person. No marriage was located indicating that a marriage took place after 1910 and before 1917..
Sources
↑ National Archives, Dawes Commission; Chickasaw Roll card 253, line 2