Peter Yarrow (May 31, 1938 – January 7, 2025) was an American singer who found fame with the 1960s folk music trio Peter, Paul and Mary. Yarrow co-wrote, with Leonard Lipton, the group's most best-selling song, "Puff, the Magic Dragon".
He appears in "Ready, Willing, and Disabled" as one of the people, specifically the Peter, that Joe Swanson thanks at his City Hall honoring and awards ceremony.
Meg visits several shopping malls with pun names in "Christmas is Coming" in search of a Santa Claus that gave her her first orgasm, including "Peter, Mall and Mary."