B. H. Roberts calls Moroni an "ancient prophet."
B. H. Roberts, "New Dispensation Thoughts," Deseret News, October 11, 1930: 23
...we of the New Dispensation know that he had in mind the branch of the house of Israel who had been led by the providences of God into the western continents we now call America.
The second step in the unfolding of the New Dispensation was the revelation which made known that this other "fold" of the Christ, who were to hear his voice, were no other than the branch of Israel in American. Hence came Moroni, an ancient prophet among that people, now an angel of God, to make known the visit of the Christ to them, that their testimony of the Christ might be added to the witness of those of the eastern continents for evidence for the enlargement of faith.