When the term Mormon is used, it generally references the LDS of Salt Lake.
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The first Mormon, Joseph Smith never did make it to Utah Territory...
He wasnt an LDS of Salt lake either...
and yet your LDS AKA Mormons of Salt Lake worship him along with the LDS AKA Mormons of Hillsdale...
and believe the same religious books he wrote...
This guy did...
"Now if any of you will deny the plurality of wives, and continue to do so, I promise that you will be damned;
and I will go still further and say, take this revelation, or any other revelation that the Lord has given,
and deny it in your feelings, and I promise that you will be damned.
Brigham Young - JoD 3:266 (July 14, 1855)