What we would consider child marriage was normal then, but polygamy was not. Polygamy was one of the charges leveled against Mormons during their various persecutions in Ohio, Missouri, and Illinois.
Was child marriage really normal back then? The stats I've seen say 19th Century women were getting married in their early 20s and men in their mid 20s. It went down by a few years in the 1950s and 1960s before going up to what it is now.
