April 5, 1841

Nauvoo, Illinois
Joseph Smith married Louisa Beaman. This is the first of Joseph's plural marriages for which there is documentable evidence. Joseph B. Noble, Louisa's brother-in-law, performed the ceremony as it was dictated to him by Joseph.
Sources: 
The Rise and Fall of Nauvoo, B. H. Roberts, p. 116
Mormon Enigma: Emma Hale Smith, Linda K. Newell and Valeen T. Avery, p. 95
Sustaining the Law: Joseph Smith's Legal Encounters Gordon A. Madsen, Jeffrey N. Walker, and John W. Welch, 
Winter Quarters

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