John P. Charlton was an American printer[1] and stationer[2] from Philadelphia, Pennsylvania, who is often credited as the inventor of the private postal card, which he copyrighted in 1861 together with Hymen Lipman.[3]
- ^ The Historical Commission of Redondo Beach (February 15, 2006). Redondo Beach. Arcadia Publishing. p. 7. ISBN 0-7385-3077-8.
- ^ "Ask The Globe". Boston Globe. May 4, 1986. Retrieved 2009-07-20.
- ^ Patterson, Dorothy W.; DeVries, Janet M. (April 7, 2008). Delray Beach (Postcard History: Florida). Arcadia Publishing. p. 10. ISBN 978-0-7385-5330-6.