John L. Gihon
 John Lawrence Gihon (April 21 1839 – September 18 1878) was a Philadelphia photographer best known for establishing the Philadelphia Sketch Club documenting the American Civil War and producing one of the earliest baseball cards. He was a featured photographer at the 1876 Centennial Exhibition contributing to the Philadelphia Photographer magazine and author of the Photographic Colorists' Guide published in 1878.