Flipping through DISH channels I came across the movie "Starship Troopers". It mentions a massacred mormon colony complete with an Angel Moroni. On googling it I found a bit of information.
"Port Joe Smith was a colony on the planet Dantana founded by a group of Mormon extremists. It was one of many unofficial colonies founded by religious groups outside of Federation space. Despite warnings from the Federation government, the Mormons colonized Dantana even though it was dangerously close to Arachnid space. One month later, the Arachnids raided the colony, killing all 173 civilians."

More (including photos) can be learned about this reference at http://www.ldsfilm.com/movies/StarshipTroopers.html

Hilarious!!!

the coed shower scene.

Yup. I remember that very well...not as well as the shower scene...Why can't the real military be that way?!

There is some discussion in the article about Heinlein's association with Mormonism (none). Irrelevant. The mormon colony was not in the book, just the movie.

The book and the movie were substantially different, almost unrelated.

Yeah I watched the movie in the theater outside of Utah and the place exploded with laughter..... people are getting pretty fed up with Mormons and their nonsense. I guess its always been that way. TBM's wear it with a badge of honor, Kind of like the Emperor's clothes they will always ignore the obvious.

Robert A. Heinlein wrote several stories with pseudo Mormon-like elements--take a look at "Sixth Column" (a.k.a. "Day After Tomorrow" based on "All" by John W. Campbell, Jr.) and "If This Goes On" where the entire USA is taken over by a prophet led Mormon style cult.