Edward William Brooke III was an American lawyer and politician who represented Massachusetts in the United States Senate from 1967 to 1979. A member of the Republican Party, he was the first African American elected to the United States Senate by popular vote. Prior to serving in the Senate, he served as the Attorney General of the Commonwealth of Massachusetts from 1963 until 1967. Edward Brooke was the first African-American since Reconstruction in 1874 to have been elected to the United States Senate and he was the first African-American United States senator since 1881 to have held a United States Senate seat. Edward Brooke was also the first African-American United States senator ever to have been re-elected to the United States Senate.

Endicott Howard Peabody was an American politician from Massachusetts. A Democrat, he served a single two-year term as the 62nd Governor of Massachusetts, from 1963 to 1965. His tenure is probably best known for his categorical opposition to the death penalty and for signing into law the bill establishing the University of Massachusetts Boston. After losing the 1964 Democratic gubernatorial primary, Peabody made several more failed bids for office in Massachusetts and New Hampshire, including failed campaigns for the U.S. Senate in 1966 and 1986.