For the second year running, John Lennon and his second son Sean held a joint birthday party at the Tavern On The Green in Central Park, New York City.
The occasion was John's 39th birthday and Sean's fourth. Also present was Yoko Ono, and friends of Sean and their parents.
Lennon and Ono gave each of the young guests a present, and arranged entertainment by a magician and a clown. The Tavern On The Green was a favourite destination for Lennon during the late 1970s.