The November 5 1956 edition of the Toronto Daily Star contained these two ads for people looking for entertainment options for the evening:
A Google search for Ruthie Price was a bit confusing, as there is a young drummer with that name. But this ad might refer to Ruth Price, an American jazz singer, artistic director, and adjunct assistant professor of ethnomusicology. She is still alive; she will turn 81 this year.
Ralph Sharon (1923-2015) became a naturalized American citizen, and went on to collaborate with Tony Bennett for more than 50 years, touring with him and working on his albums.
Moxie Whitney (1919-1989) was a Canadian musician who led bands in Ottawa, Toronto, Lake Louise, Banff, and various Canadian places between 1946 and 1982, briefly moving away to lead a band in Honolulu and the Bahamas.
I could find nothing on Jean Ramsay and Roy Roberts; either their fame didn’t reach beyond Toronto, or their names weren’t unusual enough for Google to pick them out from their namesakes.