Morgan County, Utah: History
An early route of the Hastings Cutoff ran through the Morgan Valley and down through a narrow gorge in Weber Canyon. The Donner Party avoided going through the Morgan Valley in order to speed up their journey. However, their alternate route proved more time-consuming.
In 1855, Charles Sreeve Peterson and his family became the first white settlers to take up permanent residence in the Morgan Valley after cutting a road through Weber Canyon. After others began settling in the rather limited planar areas of the mountainous territory, the Utah Territory legislature acted on January 17, 1862, to form a separate county from sections partitioned off Davis, Great Salt Lake, Summit, and Weber counties. The small settlement at Morgan was named the county seat. The town (and thus the new county) was named for the father (Jedediah Morgan Grant) of Heber J. Grant, who would serve as president of LDS Church from 1918 until 1945.