Those rolls were compiled by the U.S. government from 1893 to 1914 to enumerate Cherokee, Choctaw, Creek, Chickasaw, Oklahoma Seminole, and some Florida Seminole. Nobody has found a Warren ancestor on the Dawes Rolls. That doesn’t mean there isn’t one there.
More than a quarter-million people applied to be included when the Dawes Commission began its work. Fewer than 100,000 actually were enrolled as Indians. People were chosen to be listed on or left off the rolls by white bureaucrats who inspected their appearance. In some cases a brother was included and another brother or sister was not.
One unstated goal of the rolls was to exterminate Indian identity after the period of actual slaughter had ended. Thus, many who legitimately claimed Indian blood were denied a listing out of a desire to reduce the count. As with all the other ethnic cleansing undertaken to eliminate Indians, this one was highly successful. (Source)