An early use of "Destroying Angel" in American History

THE "DESTROYING ANGEL."

"Destroying Angels," as I understand it, are Latter-Day Saints who are set apart by the Church to conduct permanent disappearances of obnoxious citizens. I had heard a deal about these Mormon Destroying Angels and the dark and bloody deeds they had done, and when I entered this one's house I had my shudder all ready.
But alas for all our romances, he was nothing but a loud, profane, offensive, old blackguard! He was murderous enough, possibly, to fill the bill of a Destroyer, but would you have any kind of an Angel devoid of dignity? Could you abide an Angel in an unclean shirt and no suspenders? Could you respect an Angel with a horse-laugh and a swagger like a buccaneer?

From Twain's "Roughing It" circa 1982