In the 15 October Times and Season, Joseph wrote strongly against coveting other men's wives. As Editor, he republished an 1830 revelation in which it was revealed to him: Smith condemns coveting other men's wives . "And again: I command thee, that thou shalt not covet thy neighbor's wife." (Times and Seasons 3 [October 15,1842]: 944) However, according to LDS authors, by the fall of 1842 Joseph was married to Mary Elizabeth Rollins, wife of Adam Lightner, and Zina Diantha Huntington, wife of Henry B. Jacobs. Both women were living with their husbands at that time.
[Joseph Smith Polygamy Timeline, http://www.i4m.com/think/polygamy/JS_Polygamy_Timeline.htm]