William Somers Mailliard (June 10, 1917 – June 10, 1992) was an American banker and World War II veteran who was member of the U.S. House of Representatives from California from 1953 to 1974. Early life William S. Mailliard was born on June 10, 1917 in Belvedere, California. He attended Tamalpais High School in San Rafael, California and the Taft School in Watertown, Connecticut. He graduated with a Bachelor of Arts from Yale University in 1939. Career He engaged in the banking business with American Trust Co., San Francisco, Calif., in 1940 and 1941. He served as assistant naval attaché in the United States Embassy in London in 1939 and 1940; with Bureau of Naval Personnel, Washington, D.C., in 1941 and 1942; attended the Naval War College in 1942; was assigned to duty on staff of Seventh Amphibious Force as flag lieutenant and aide to Vice Adm. D.E. Barbey in 1943 and released to inactive duty in March 1946 as a lieutenant commander; Captain, USNR; awarded Silver Star, Legion of Merit, Bronze Star Medal;. promoted to commander in 1950 and to rear admiral in 1965 in the U.S. Navy Reserve. He resumed his banking career in 1946 and 1947 and was assistant to the director of the California Youth Authority in 1947 and 1948. An unsuccessful Republican candidate for election in 1948 to the 81st Congress and secretary to Gov. Earl Warren 1948–1951. Executive assistant to the director of the California Academy of Sciences in 1951 and 1952 and elected as a Republican to the 83rd and to the ten succeeding Congresses, serving from January 3, 1953, until his resignation on March 5, 1974. He was succeeded by John Burton, the narrow majority winner of a special election to fill his vacated seat. Mailliard is the last Republican to have represented San Francisco and Marin County in Congress. He was a permanent Representative of the United States to the Organization of American States with the rank of Ambassador, March 7, 1974, to February 1, 1977 and nominated by President Gerald R. Ford and confirmed by the United States Senate on December 10, 1975, to be a member of the Board of Directors of the Inter-American Foundation and was a resident of the community of Belvedere, California, consisting of the eponymous island, along with part of Corinthian Island, in the San Francisco Bay, just offshore from the Tiburon Peninsula. He moved