I just found it funny that something like that would be put in. Unfortunately, I'm not the best at LDS trivia so I I'm guessing that there may be other stuff that I missed.
Another thing I noticed playing through was that the president of the NCR is named President Kimball. Not sure if the name was referenced on purpose, but when I looked up info for a quest involving him, Spencer W. Kimball came up as the top results on Google when I searched "President Kimball."