The massacre occurred in southern Utah at Mountain Meadows, and was perpetrated by Mormon settlers belonging to the Utah Territorial Militia (officially called the Nauvoo Legion), together with the Southern Paiute Native Americans. The Mountain Meadows Massacre (September 7–11, 1857) was a series of attacks that resulted in the mass murder of at least 120 members of the Baker–Fancher emigrant wagon train. Lee, leader in the local Mormon community and of the local militia Possible instigation from Brigham Young and other senior Mormon leadership.Mormon teachings against outsiders during the Mormon Reformation period.Nauvoo Legion (Utah Territorial Militia, Iron County district).
120–140 members of the Baker–Fancher wagon train