CLARK, Joseph Sill, a Senator from Pennsylvania; born in Philadelphia, Pa., October 21, 1901; attended Chestnut Hill Academy; graduated from Middlesex School in 1919, Harvard University in 1923, and the University of Pennsylvania Law School in 1926; admitted to the bar in 1926 and commenced the practice of law in Philadelphia, Pa.; during the Second World War served with the United States Army Air Corps 1941-1945, attaining the rank of colonel; city controller of Philadelphia 1950-1952; mayor of Philadelphia 1952-1956; member of board of overseers, Harvard University 1953-1958; elected as a Democrat to the United States Senate in 1956; reelected in 1962 and served from January 3, 1957, to January 3, 1969; unsuccessful candidate for reelection in 1968; professor, Temple University 1969; president, World Federalists, U.S.A., 1969-1971; was a resident of Philadelphia, Pa., until his death, January 12, 1990; remains were cremated.