Amulek speaks of his "women," suggesting a plurality of wives.
Alma 10:11, The Book of Mormon, The Church of Jesus Christ of Latter-day Saints, accessed April 28, 2023
11 For behold, he hath blessed mine house, he hath blessed me, and my women, and my children, and my father and my kinsfolk; yea, even all my kindred hath he blessed, and the blessing of the Lord hath rested upon us according to the words which he spake.