In the Supplemental Agreement Act to the General Allotment Act of 1902, each member of the Choctaw and Chickasaw tribes was allotted 320 acres. Each freedman was allotted land equal in value to 40 acres of the average allotable land of the Choctaw and Chickasaw Nations.
This allotment of land was necessary for Oklahoma's statehood but changed long-standing tribal tradition by dividing tribal lands and parceling it out to individuals. Land allotted was not necessarily where these individuals lived, forcing some tribal members out of the areas in which they had begun to prosper.