Just think what their wife swapping parties were like.
Well at age 37, Heber C. Kimball -- one of the top three ranking Mormons behind Brigham Young & the other counselor, l traded still childless Nancy Winchester to yet another arranged marriage with Amos Arnold -- so that she could indeed have a child...
The separation with Kimball occurred in 1865.
See the chart, wife #8 from Kimball's 45 wives: Polygamy and Mormon Church Leaders
Kimball once said:
“I think no more of taking another wife than I do of buying a cow, and if you want to build up the kingdom you must take more wives.” (Lds “apostle”/then first President Heber C. Kimball, quoted in Jennie Anderson Froiseth, ed., The Women of Mormonism: or the Story of Polygamy As Told by the Victims Themselves, 1886; see Abanes, One Nation Under Gods, p. 295)
And hey...these women were traded because some were bought (like cattle) by the Mormons in Scandinavia (Denmark):
In Scandinavia,[279] in ca. 1850s–1870s,[280] where there were many critics of the Mormon religion, "ballad mongers hawked 'the latest new verse about the Copenhagen apprentice masons' who sold their wives to the Mormons for two thousand kroner and riotously drowned their sorrows in the taverns".[281][ax]{{Copenhagen, the capital of Denmark}}{{Kroner, Danish currency}}
Wife selling
These women were largely reduced by these Mormon leaders to breeding purposes:
At a stake conference, LDS leader George Q. Cannon of the First Presidency [Mormonism's HIGHEST hiearchy] said:
"The people of the world do not believe in breeding, but we do. So the people of the world will die out and we will fill the whole earth. I admit those raising children by plural wives are not complying with man-made laws, but in the sight of God they are not sinning, as there is no sin in it. (George Q. Cannon, Sanpete Stake conference, Sept., 1899. Smoot Investigation, Vol. 1, p. 9.) [BTW, the fundamentalist (fLDS) still cite this LDS source]
So...reducing wives to breeding cattle is, unfortunately, a long-term Mormon male tradition!