Jane Frances Aaron (April 16, 1948 – June 27, 2015) was an American filmmaker and children’s book illustrator, best known for her work on Between the Lions and Sesame Street. Aaron mixed live-action shots and animated images to teach children the alphabet, counting skills, and opposites, such as front and back or full and empty.

NY Times Obituary: https://www.nytimes.com/2015/07/06/arts/television/jane-aaron-filmmaker-whose-animation-sprouted-on-sesame-street-dies-at-67.html