Evans was born on February 3, 1827, in Dover, England.[2] His brother John A. Evans, jr. born in 1852 in Pennsylvania, was also a civil engineer.[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.[2] They had one child, Percy Henriques Evans (1873–1964).[5]
Union Pacific Railroad
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.[2][6] In the summer of 1863, UPRR president Thomas C. Durant hired Evans along with J.E. House, Samuel B Reed, Percy T Brown and Ogden Edwards for conducting engineering surveys for a possible route to Salt Lake, Utah.[6] Evans was responsible for the Green River to the eastern base of the Black Hills (now known as the Laramie Mountains)[7] segment of the proposed route, a distance of almost 400 miles thru present-day Rawlins, Medicine Bow, Laramie and Cheyenne, Wyoming.[6] The main challenge for Evans was crossing the continental divide between the latter two cities.[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.[8] Percy T. Browne ("P. T. Browne") was shot by a band of Sioux warriors and died at LaClede Station also in June 1867.[8]
Union Pacific Railroad Company., Evans, J. A., & Durant, T. C. (1865). Report of Jas. A. Evans of exploration from Camp Wallach to Green River. New York: W.C. Bryant & Co., Printers. and map
Denver South Park and Pacific Railroad: Extension to the Gunnison Valley and anthacite [sic] coal fields of the Elk Mountains. (1880) map
Denver, South Park, and Pacific Railroad Company., Evans, J. A., & Evans, J. (1880). Surveys of the line of the company's road (Leadville to Buena Vista in Chaffee and Lake Counties, Colorado). John Evans, President; James. A. Evans, Chief Engineer; March 10, 1880.
Denver, South Park, and Pacific Railroad., Evans, J. A., & Evans, J. (1882). Summit County branch of the Denver South Park and Pacific Railroad: From sta. 895 on Blue River to the crossing of Grand River.
Denver, South Park, and Pacific Railroad map (1883)
Death and interment
Evans died in Denver Colorado on December 26, 1887 [9] and was interred on December 28, 1887, at Riverside Cemetery, also in Denver, Colorado.[10]
In 1869, Albert D. Richardson then a correspondent for the New York Tribune wrote that at that time, Evans pass was
"...the highest railway point in the world -- eight thousand two hundred and forty feet above the sea. Still, it is not the backbone of the Rocky Mountains, but only of the (Laramie mountains), an outlying eastern range. The continental divide is two hundred miles further west and one thousand feet lower. ... Evan's Pass ... bears the name of its discoverer. ... The pass is in no sense a gorge or canyon -- but looks, topographically, like a vast rolling prairie disfigured by rocks and reached by a gentle ascent. Nor are the distant mountains on the north and south such slender peaks and pyramids as fanciful artists depict, but only low, irregular, broken ridges."[7][11]
^Haycox Jr, Ernest. "'A very exclusive party'." Montana; The Magazine of Western History 51.1 (2001): 20.
^ abcdBruce, William George, ed. History of Milwaukee, City and County. Vol. 3. SJ Clarke Publishing Company, 1922. Accessed at [1] This article incorporates text from this source, which is in the public domain.
^Tenth Census of the United States, 1880. (NARA microfilm publication T9, 1,454 rolls). Records of the Bureau of the Census, Record Group 29. National Archives, Washington, D.C. Accessed at Ancestry.com on August 11, 2020.
^Denver, Colorado, City Directory, 1885 Accessed at Ancestry.com in August 2020.
^Michigan, Marriage Records, 1867-1952, Registers, 1868-1875, 1872 Tuscola-1873 Montcalm, Accessed at Ancestry.com on August 14, 2020.
^ abcdSavage, James Woodruff, John Thomas Bell, and Consul Willshire Butterfield. History of the City of Omaha, Nebraska. Munsell, 1894. This article incorporates text from this source, which is in the public domain.
Athearn, R. G. (1971). Union Pacific country. Lincoln: University of Nebraska Press.
Dodge, Grenville Mellen. How We Built the Union Pacific Railway: And Other Railway Papers and Addresses. Vol. 447. US Government Printing Office, 1910. List of civil engineers on page 37 of 1910 material. This article incorporates text from this source, which is in the public domain.
Galloway, John Debo. The First Transcontinental Railroad: Central Pacific, Union Pacific. Simmons-Boardman, 1950. Accessed at [2] This article incorporates text from this source, which is in the public domain.
Heier, Jan Richard. "Building the Union Pacific Railroad: A study of mid-nineteenth-century railroad construction accounting and reporting practices." Accounting, Business & Financial History 19.3 (2009): 327–351. Accessed at [3]
The New York Civil List compiled by Franklin Benjamin Hough (Weed, Parsons and Co., 1858) [pg. 109 and 441 for Senate districts; pg. 132 for senators; pg. 148f for Assembly districts; pg. 221ff for assemblyman] for Hurd's uncle Davis Hurd.
Klein, Maury. Union Pacific: 1862–1893. Vol. 1. U of Minnesota Press, 2006.