John Taylor says that both Nephi and Moroni visited Joseph.
John Taylor, "Man, the Offspring of God, a Dual Being—Immediate Revelation—Operate With the Priesthood," April 8, 1875, in Journal of Discourses, 26 vols. (Liverpool : Albert Carrington, 1875), 17:374
And when Joseph Smith was raised up as a Prophet of God, Mormon, Moroni, Nephi and others of the ancient Prophets who formerly lived on this Continent, and Peter and John and others who lived on the Asiatic Continent, came to him and communicated to him certain principles pertaining to the Gospel of the Son of God.