The approximately 1.2 million acres promised to the Gabrielino Tribe and other Mission Indians included 50,000 acres on the San Sebastian Reserve at the Tejon Pass at the edge of Los Angeles County, a temporary reservation to which a number of Gabrielino families had been relocated. This 50,000-acre reserve was never officially taken into trust, but instead ended up as the private property of the Superintendent of Indian Affairs, Edward Beale, who incorporated it into his newly named "Tejon Ranch".
Based upon discovery of the 18 “lost treaties” in 1905, a series of efforts were made to address the treaty-less Gabrielino Tribe, or at least to compromise its claims to land in Los Angeles County. The California Jurisdiction Act of 1928 authorized the California Attorney General to represent the Gabrielino Tribe, among others, and to bring their land claims before the U.S. Court of Claims. The Court of Claims, in California Indians v. US (1941) 98 Ct. Cols, 583, recognized the arguments of the young California Attorney General, Earl Warren, that “a promise made to these tribes and bands of Indians and accepted by them but the treaties were never ratified so the promise was never fulfilled”. -GabrielinoTribe.org