James Armstrong Evans (1827–1887) was a British-born civil engineer who was part of the effort to build the Union Pacific railroad to Promontory Point, Utah in 1869.
[3][4] In 1872, Evans then living in San Diego, California married Jessie Hunt Henriques (1846–1930) in Ann Arbor, Michigan, a descendant of Edward Howell.
[5] Evans was a division engineer and superintendent of construction in the building of the first transcontinental railway, the Union Pacific Railroad (UPRR) for 1863 thru 1869.
House, Samuel B Reed, Percy T Brown and Ogden Edwards for conducting engineering surveys for a possible route to Salt Lake, Utah.
[6] In 1867, Evans had a survey party with an engineering assistant named L. L. Hills, working just east of Cheyenne was killed by a band of Arapaho on June 18, 1867.