Best know for his portrayal of Asa Trenchard in Our American Cousin and Rip Van Winkle in Rip Van Winkle, Joseph Jefferson was one of the most popular comedians of his time. Born February 20, 1829 in Philadelphia, Jefferson was the son of actors and was introduced to the stage as a child. Jefferson made his adult debut in New York in 1849 at the age of twenty. His early New York successes led to a tour of the South and theatrical engagements in Baltimore and Philadelphia.