As far as the religion thing goes, from what I've read of classic sci fi it might be better to avoid real world religion or, instead, to present an incredibly warped version of it. The best recent example of this comes in Stephen King's Dark Tower series (the first book in particular has several good examples, from people worshipping gas pumps to a really warped christian ceremony -"the INTERLOPER!!!!" hehe).
See, the thing is the world of FO is like you are in the Twilight Zone. Any people who go through something as traumatic as nuclear devastation should have a seriously different world view/belief system than what they would have today. As such, having FO mormons just wouldnt seem right unless they were very _very_ twisted (polygamy gone wild, sacrifices, witch burnings, etc). Also, they probably shouldnt be called Mormons but something else (maybe not give themselves a name).
The best idea would be to show a modern religious people as having pieced together their religious beliefs from bits and pieces of assorted Old World religions. They wouldnt just be mormons. Strong Buddhist, Muslim, Hindu, Tao, Jewish, etc elements could be tossed into a pot and mish mashed.
See, the thing is the world of FO is like you are in the Twilight Zone. Any people who go through something as traumatic as nuclear devastation should have a seriously different world view/belief system than what they would have today. As such, having FO mormons just wouldnt seem right unless they were very _very_ twisted (polygamy gone wild, sacrifices, witch burnings, etc). Also, they probably shouldnt be called Mormons but something else (maybe not give themselves a name).
The best idea would be to show a modern religious people as having pieced together their religious beliefs from bits and pieces of assorted Old World religions. They wouldnt just be mormons. Strong Buddhist, Muslim, Hindu, Tao, Jewish, etc elements could be tossed into a pot and mish mashed.