 1909) got engaged in the preservation of Los Luceros in Rio Arriba County, New Mexico, Donald became a prominent anthropologist, and John Jr. (1913–1992), a documentary photographer, significantly contributed to fields like applied and visual anthropology.Collier's efforts to lift the U.S. government's repressive tactics towards Native Americans represented a "seismic shift" in policy and paved the way, years later, for recognition of "the religious freedom rights of the Native Americans" as reflected in the American Indian Religious Freedom Act of 1978.Collier wrote articles and books, mostly on Indian-related themes