Gustav Sohon (1825–1903) was an artist, interpreter, and topographical assistant.
Born in 1825 in Tilsit, East Prussia, Gustav Sohon immigrated to the United States in 1842 at the age of 17. In the early 1850s, he enlisted in the U.S. Army. Upon his enlistment he was stationed in the West, and eventually found his way to Fort Steilacoom. One of his first assignments was with Lieutenant John Mullan, who was surveying the country between the Rocky and Bitterroot Mountains for the Pacific Railroad Surveys railroad survey led by Isaac Stevens.
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