Lawrence, David (Leo) (1889-1966)

US politician. After working for William J Brennan, the Democrat chief of Allegheny County, he became active in state and national Democrat Party affairs. He went on to serve an unprecedented four terms as mayor of Pittsburgh (1946-59). In concert with Richard K Mellon and other civic leaders, he helped clean and build up the city. He became the first Catholic governor of Pennsylvania (1959-63). In 1963 President John F Kennedy, whose nomination he had helped to secure, appointed him chairman of the Committee on Equal Opportunity for Housing. Lawrence was born in Pittsburgh, Pennsylvania.