I tend to think of funeral prayer cards as a Catholic thing, though this assumption may be a function of my own, somewhat limited experience: the vast majority of funerals I have attended have been Catholic (at the moment, I can think of only two that were not, though that can’t be accurate, surely?).
In any case, the two examples below are most certainly Catholic, and baroquely Catholic at that.
Funeral card for Francis Joseph McGlade (1908-1961)
Francis Joseph McGlade, son of Arthur Joseph McGlade and Catherine Honora McCarthy, was a younger brother of my maternal grandfather Jack McGlade.
When Rose Ann Muriel St. Jean married Max Glatt at a Catholic church in Ottawa, the couple had to obtain “une dispense de disparité de culte” (a dispensation for [the impediment of] disparity of worship):
Marriage record of Max Glatt and Rose Ann Muriel St. Jean, 11 February 1939
The reason for this dispensation is given in the marriage record above: Max Glatt, son of Myer Glatt and Esther Pack, was “de la religion juive” (of the Jewish religion).