"That daring young girl."The Canberra Times. Vol. 60, no. 18, 251. Australian Capital Territory, Australia. 19 September 1985. p. 1. Retrieved 14 December 2018 – via National Library of Australia. ,...Rosita Gasser is a poised, gracious trapeze artiste who accepts compliments with aplomb. She is eight years old. She is a sixth-generation circus performer from both sides of her family, works with Silvers Circus, which is owned by her parents Anton and Anna...
[Silvers Grand Magic Circus : programs and related material collected by the National Library of Australia], 1900, retrieved 14 December 2018, ...Silver's Circus was originally began by Mervyn King in around 1946 along with tentmakers, David Hardie Snr. and his two sons Les and David Jnr. King. King changed his stage name to Alwyn Silver to reflect the name of the circus, and sold the circus in 1953. In 1976 the circus was re-established by Anton and Anna Gasser as Silvers Grand Magic Circus...