Raymond Pace Alexander was an American civil rights leader, lawyer, politician, and the first African American judge appointed to the Pennsylvania Court of Common Pleas. Born and raised in Philadelphia, he became the first black graduate of the Wharton School of Business in 1920. After graduation from Harvard Law School in 1923, Alexander became one of the leading civil rights attorneys in Philadelphia. He gained prominence as a black lawyer willing to fight for equal rights in the Berwyn desegregation case and represented black defendants in other high-profile cases, including the Trenton Six, a group of black men arrested for murder in Trenton, New Jersey.

The 1951 Philadelphia municipal election, held on Tuesday, November 6, was the first election under the city's new charter, which had been approved by the voters in April, and the first Democratic victory in the city in more than a half-century. The positions contested were those of mayor and district attorney, and all seventeen city council seats. There was also a referendum on whether to consolidate the city and county governments. Citywide, the Democrats took majorities of over 100,000 votes, breaking a 67-year Republican hold on city government. Joseph S. Clark Jr. and Richardson Dilworth, two of the main movers for the charter reform, were elected mayor and district attorney, respectively. Led by local party chairman James A. Finnegan, the Democrats also took fourteen of seventeen city council seats, and all of the citywide offices on the ballot. A referendum on city-county consolidation passed by a wide margin. The election marked the beginning of Democratic dominance of Philadelphia city politics, which continues today.