Joseph S. Clark, Jr.

Joseph S. Clark, Jr.

Born Oct 21, 1901

Joseph Sill "Joe" Clark, Jr. was an American lawyer and politician. A member of the Democratic Party, he served as a United States Senator from Pennsylvania from 1957 to 1969. He previously served as the 90th Mayor of Philadelphia from 1952 to 1956. Clark was the only Unitarian Universalist elected to a major office in Pennsylvania in the modern era.… Read More

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Learn about the memorable moments in the evolution of Joseph S. Clark, Jr..


1901 Birth Born on October 21, 1901.


1919 17 Years Old He graduated from Middlesex in 1919 as class valedictorian.


1923 - 1924 2 More Events
1926 24 Years Old 1 More Event
He earned his Bachelor of Laws degree in 1926.
1928 26 Years Old 1 More Event
In 1928, he left the Republican Party and became a Democrat, supporting Al Smith in that year's presidential election.
1930 28 Years Old …  Percy's daughter Mary was married to Nelson Rockefeller from 1930 to 1962, before he served as Vice President of the United States. … Read More


1933 31 Years Old Clark was an unsuccessful candidate for the Philadelphia City Council in 1933, with Dilworth serving as his campaign manager. … Read More
1934 32 Years Old 1 More Event
He managed Dilworth's unsuccessful campaign for the Pennsylvania State Senate in 1934.
1935 33 Years Old Clark was married three times and had two children. He and his first wife had one son, Joseph S. Clark III. He was married to his second wife, Noel Hall, from April 1935 until their divorce in September 1967. … Read More
1941 39 Years Old In August 1941, Clark enlisted in the United States Army Air Forces (AAF) and was assigned as a captain in the Officers' Reserve Corps Headquarters at Washington, D.C. He later became director of the Organizational Planning Headquarters with the AAF. … Read More


1943 - 1948 4 More Events
1949 47 Years Old Running as a reform Democrat, Clark was elected city controller in 1949, winning by more than 100,000 votes. … Read More
1950 48 Years Old Serving from 1950 to 1952, Clark investigated and publicized scandals within the Republican-controlled city government, including the embezzlement of tax money and court funds, imprisonment of the fire marshal, falsification of records, and corruption in the water bureau. … Read More
1951 49 Years Old 1 More Event
Clark announced his candidacy for Mayor of Philadelphia in May 1951. … Read More


…  He previously served as the 117th Mayor of Philadelphia from 1952 to 1956. … Read More
1955 53 Years Old In 1955, he chartered the Food Distribution Center Corporation to create a new food market, and established the Urban Traffic and Transportation Board to design a mass transit system.
In 1956, Clark became the first politician to receive the Philadelphia Award for promoting good governance in the city.


1962 60 Years Old In 1962, Clark was re-elected to a second term after narrowly defeating Congressman James E. Van Zandt by a 51%-49% margin.
1963 61 Years Old 1 More Event
Clark was appointed to the Democratic Steering Committee in 1963, but conservative Southern Democrats thwarted his efforts to appoint more liberal Senators to committees.
1964 62 Years Old 1 More Event
In 1964, he endorsed Genevieve Blatt, the state Secretary of Internal Affairs, over Judge Michael Musmanno in the Democratic senatorial primary. … Read More
1968 66 Years Old 1 More Event
In 1968, Clark was defeated for re-election to a third term by Congressman Richard Schweiker, losing by a margin of 52%-46%. … Read More
1969 67 Years Old 1 More Event
Following his departure from the Senate, Clark served as a professor at Temple University in 1969.
1971 69 Years Old A strong opponent of Mayor Frank Rizzo, he supported William J. Green, III in the 1971 Democratic primary and then Republican W. … Read More
1975 73 Years Old He was chairman of independent candidate Charles Bowser's campaign in 1975.
1990 88 Years Old Died on January 12, 1990.
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