Ben Nighthorse Campbell (Northern Cheyenne) is remembered as an effective congressional leader who passionately advocated for Native American issues. He served in both the U.S. House of Representatives and the U.S. Senate. Among other things, he was instrumental in the political advocacy for establishing the National Museum of the American Indians (NMAI).

Harvey Pratt (Cheyenne and Arapaho) was a national voice in support of Native American arts. A large part of his career was as a police sketch artist. He also headed the Indian Arts and Crafts Board for a decade. A former U.S. Marine, he was an advocate for military veterans. His design for a Native American Veterans Memorial was chosen and built on the NMAI campus in 2022.