Otha Donner Wearin was an American writer and politician. Elected as the youngest member of President Franklin D. Roosevelt's first "New Deal" Congress, his political career stalled in 1938 when he gave up his seat in the United States House of Representatives at Roosevelt's urging to run for a U.S. Senate seat held by another Democrat, Guy Gillette, but primary voters rallied behind Gillette. He became a prolific writer, which led to his election to the Cowboy Hall of Fame.

Guy Mark Gillette was an American politician serving as a Democratic U.S. Representative and Senator from Iowa. In the U.S. Senate, Gillette was elected, re-elected, defeated, elected again, and defeated again.