Regarding "St. Bridget", it was not performed in the first production of Mame that I saw in '94. It's been brought up on ATC a few times and various posters have said it's no longer in the show. I just assumed that what I read here was correct.
I'm sure that's completely incorrect information that "St. Bridget" is "no longer in the show. That song is about 90 percent of the content of the first scene of the show, the in-one scene where Agnes and Patrick have just arrived in New York and are frightened of their new surroundings. If you cut the song, you'd have to cut that whole brief scene, and that wouldn't work at all.