"PHMC Historical Markers Search"(Searchable database). Pennsylvania Historical and Museum Commission. Commonwealth of Pennsylvania. Archived from the original on 2013-11-13. Retrieved 2014-01-25.
typepad.com
agatetype.typepad.com
Ashwill, Gary. "Lewis Park, 1927". Reconstructing Negro League & Latin American Baseball History. Agate Type. Retrieved 2 August 2022.
web.archive.org
"PHMC Historical Markers Search"(Searchable database). Pennsylvania Historical and Museum Commission. Commonwealth of Pennsylvania. Archived from the original on 2013-11-13. Retrieved 2014-01-25.