If you search British Newspaper Archive for “Zita Ponder” there are 26 articles about her performances ranging from 1910 to 1934. Leaving out some false “hits”.
Some give her name as Zita Inez PONDER; this when mentioning her book “The Bandaged Face” (Selwyn and Blount. 7s 6d).
The Hull newspapers for 1924 have around 80 items about the “Palace Theatre” - Circus & Rodeo, Political meetings, players for the Grimsby Football club?, comedy, Strong man and dancing competitions, Jocko the juggling crow, and variety etc.