Between 1893 and 1907, when Oklahoma became a state, the U. S. government forced the allotment of the tribal lands to individual tribal members enrolled in what is known as the Dawes Roll

The Dawes Rolls, also known as the "Final Rolls", are the lists of individuals who were accepted as eligible for tribal membership in the "Five Civilized Tribes": Cherokees, Creeks, Choctaws, Chickasaws, and Seminoles. (It does not include those whose applications were stricken, rejected or judged as doubtful.)

Explanation:

the answer is they believed george iii would never give them their freedom.