5252 78th Street

5252 78th Street is a fictional street address featured in comic books published by DC Comics. It first appeared in The Flash #123 in September, 1961. This was the address of a modest suburban home located in Keystone City on Earth-Two. It was the home of Jay Garrick and his wife, Joan. Jay's Earth-One counterpart, Barry Allen, would visit the Garricks often on his various journeys from his home dimension - usually to recruit Jay's assistance in stopping costumed criminals either on his Earth, or on Barry's.