From Hidden City Philadelphia:
When 18 year old John Coltrane moved to Philadelphia, in 1943 the nation’s third largest city, he entered a fundamentally different world from his hometown of High Point, N.C. Like many African-Americans who migrated to major cities of the North, Coltrane joined older family members and friends already settled there. They lived in an apartment at 1450 N. 12th Street between Jefferson and Master Streets in an area since demolished for the Yorktown Urban Renewal project.
All That Philly Jazz 