[Frankford Arsenal, Philadelphia, Pennsylvania.] Bertha Stallworth, age twenty-one, inspecting the end of a forty millimeter… https://www.rawpixel.com/image/12242087/photo-image-face-hand-personFree Image from public domain licenseHouse and Grounds where the first Fourth of July was celebrated, Frankford, Pa. by Robert Newell and Son https://www.rawpixel.com/image/14298118/photo-image-person-public-domain-natureFree Image from public domain licensePresbyterian Church of Frankford, as it was. by American Photo Relief Printing Company https://www.rawpixel.com/image/14317471/image-church-trees-artFree Image from public domain license