Yes.
My own family's Lds roots go back 150+ years. With all of the polygamy that occurred, Mormon families are more interconnected relationally (at least by marriage) than most people imagine.
Joseph Smith's nephew, a "prophet" of the Mormon church -- Joseph F. Smith, married his cousin, a 16 yo when he was 22.
What's interesting is that Mitt Romney is the direct ancestor of two [count 'em two] Lds "apostles" -- both brothers Parley P. and Orson Pratt, four generations previous!
This was possible because Mitt's grandparents were cousins! (Gaskell Romney and Ann Amelia Pratt). Gaskell Romney's grandfather was Orson Pratt; Ann Pratt's grandfather was Parley P. Pratt.
For those wanting to see it on a brief generational chart, go here: Pratt-Romney family -- and then scroll down to the bottom.
(Now you see where the fLDS got the idea of intermarriage?)
Saw the Huntsman Romney generational chart. Could you find it and post it for me.