Lyndon Baines Johnson, often referred to by his initials LBJ, was an American politician who served as the 36th president of the United States from 1963 to 1969, and previously as 37th vice president from 1961 to 1963. He assumed the presidency following the assassination of President John F. Kennedy.

Richard Milhous Nixon was the 37th president of the United States, serving from 1969 to 1974. A member of the Republican Party, Nixon previously served as the 36th vice president from 1953 to 1961, having risen to national prominence as a representative and senator from California.

Gerald Rudolph Ford Jr. was an American politician and attorney who served as the 38th president of the United States from 1974 to 1977. A member of the Republican Party, Ford previously served as the 40th vice president of the United States from 1973 to 1974.

James Earl Carter Jr. is an American politician, businessman, and philanthropist who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party, he previously served as a Georgia State Senator from 1963 to 1967 and as the 76th governor of Georgia from 1971 to 1975.

Ronald Wilson Reagan was an American politician who served as the 40th president of the United States from 1981 to 1989 and became a highly influential voice of modern conservatism. Prior to his presidency, he was a Hollywood actor and union leader before serving as the 33rd governor of California from 1967 to 1975.