He was a member of a special Gulf Coast defense board (1856) and Chief Engineer, Utah Expedition (1858).

Johnston's Army: Albert Sydney Johnston commanded the forces that made up the Utah Expedition.

By 1860 Utah Territory had absorbed the first shock waves created by the Utah Expedition.

The Utah Expedition leaves Fort Leavenworth, effectively beginning the Utah War.

He operated a Green River ferry from 1854 to 1856, and in 1857 signed on with the Utah Expedition as a hunter and guide.

When the Utah Expedition was organized in 1857 Tracy was put in command of Company H.

In January 1858, the Seventh Infantry was among the troops assigned to the Utah Expedition to put down a possible Mormon rebellion.

The US Army used the tent exclusively during the Utah Expedition during the winter of 1857-58, proving the design.

Work was suspended in 1857 during the time of the Utah Expedition, also known as Buchanan's Blunder.

Mormon apostle George A. Smith was on a circuit of those southern settlements preparing them for the approaching Utah Expedition.