Joseph Christopher O'Mahoney was an American journalist, lawyer, and politician. A Democrat, he served four complete terms as a U.S. senator from Wyoming on two occasions, first from 1934 to 1953 and then again from 1954 to 1961.

John Joseph Hickey, known as Joe or J. J. Hickey, was an American judge and politician who served the 24th Governor of Wyoming and Senator as a Democrat before sitting on the Court of Appeals for the Tenth Circuit. He was the first Governor of Wyoming to be born in the 20th century.