Joseph Jefferson was an American actor. He was the third actor of this name in a family of actors and managers, and one of the most famous of all American comedians. Wikipedia
Thomas's son Joseph Jefferson I (1774-1832) came to America in 1795 on tour and remained to manage the John Street and Park Theatres in New York and the Chestnut Street Theatre in Philadelphia. www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=8438
The definitive Wikipedia entry for Joseph Jefferson. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Joseph_Jefferson
Directly opposite on the southwest corner of Spruce Street is the birthplace of Joseph Jefferson (1829-1905), the American actor who made Rip Van Winkle famous. www.ushistory.org/districts/washingtonsquare/ripva.htm
Thomas's son Joseph Jefferson I (1774-1832) came to America in 1795 on tour and remained to manage the John Street and Park Theatres in New York and the Chestnut Street Theatre in Philadelphia. www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=8438