Mormon Emigration Numbers

It took three more years before all of them [Pottawatomie settlers] could be removed to Utah. In addition to the 500-600 wagons of 1849, about 700 went out in 1850, at least 500 in 1851, and 1,300-1,400, carrying perhaps as many as 10,000 people, in 1852.

All of those years were bad cholera years, but the Saints, sticking generally to their north back trail and thus avoiding contact with people who had brought the disease by riverboat from New Orleans, kept comparatively free of infection.