Kevin Johnson has found aerial images of the 44th & Parkside Ballpark, also known as Penmar Park* Parkside Athletic Field or the PRR-YMCA Athletic Field, home of the Philadelphia Stars for most of their existence. It was built by the Pennsylvania Railroad adjacent to that company’s main yard in Philadelphia. The images date from 1942.

*-UPDATE 11/23/2025 Although secondary sources often call this field “Penmar Park, there is actually no evidence (that I have found) that this name was ever used for this ballpark. It was referred to mostly as just “44th & Parkside.” From 1939 through the mid-1940s it usually appears as “Parkside Athletic Field” or “Parkside Field” in event listings in local papers; from 1942-1944 it is often referred to as the Bolden Bowl or Bolden’s Bowl. I’ve seen it called PRR Field, because it was originally constructed by the Pennsylvania Railroad. But I’ve never actually seen it called Penmar Park.

There was, however, a very popular mountain resort/amusement park on the Pennsylvania/Maryland border (Waynesboro PA) called Pen-Mar Park, which is constantly mentioned in Philadelphia and other Pennsylvania papers throughout the 1920s, 1930s, and 1940s. I wonder if historians at some point somehow got this mixed up.