A Dictionary of the Book of Mormon/Mathonihah
MATHONIHAH. One of the twelve Disciples called and chosen by Jesus to minister to the Nephites at the time of his visit to that people (A. C. 34). Mathonihah was present near the temple in the land Bountiful, when Jesus appeared, and was baptized by Nephi on the day following. He is not again mentioned by name in the sacred record. His brother, Mathoni, was also one of the Nephite Twelve.