Robert Y. Thornton was an American attorney, politician, and jurist in the U.S. state of Oregon. A Democrat, he was the second-longest serving Oregon Attorney General in the state's history, holding that office from 1953 to 1969. His 16-year tenure was second only to Republican Isaac Homer Van Winkle, who bested him by seven years, serving from 1920 to 1943. Thornton was the Democratic nominee for Oregon Governor in 1962, losing in the general election to incumbent Mark Hatfield.

Mark Odom Hatfield was an American politician and educator from the state of Oregon. A Republican, he served eight years as Governor of Oregon, followed by 30 years as one of its United States senators, including time as chairman of the Senate Appropriations Committee. A native Oregonian, he served in the United States Navy in the Pacific Theater during World War II after graduating from Willamette University. After the war he earned a graduate degree from Stanford University before returning to Oregon and Willamette as a professor.