These performers are New Zealand Champion Cecil Tucker, 16 year old Yvonne De Bough and Russell Middlebrook.
Russell Middlebrook is Byko the Clown and Mademoiselle passed away a few years ago but was a great performer and carried on into his 80s working at Robinsons Family Circus.
He was also a great plasterer and bragged about working on the fancy designs in the Civic Theatre in Auckland. He was awarded the VAC Benny Trophy in 1983 and a Scroll of Honour in 1973.
Filmed maybe in the 1950s. Russell is commenting on the scenes.