Morgan Mills was born in Grand Junction, Colorado on July 27, 1914. He later moved to California, where he worked as an electrical engineer and was involved in the Boulder (Hoover) Dam project in Las Vegas, Nevada. He passed away on March 20, 1982 in Los Angeles, California.

Rodrigo was raised in a mix-status Mexican family. He was born in Mexico and immigrated at age three. He became a citizen of the U.S. when he was in 8th grade. He is a grad student who has been a student worker on the Latinx Voices project since its inception in 2018.