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N/A, N/A. “Union Pacific.” UP, 0AD, www.up.com/heritage/history/.

Kennedy, Robert C. “On This Day: May 29th, 1869.” The New York Times, The New York Times, 2001, archive.nytimes.com/www.nytimes.com/learning/general/onthisday/harp/0529.html.

N/A, N/A. “Joining the Workforce  :  Irish  :  Immigration and Relocation in U.S. History  :  Classroom Materials at the Library of Congress  :  Library of Congress.” The Library of Congress, 0AD, www.loc.gov/classroom-materials/immigration/irish/joining-the-workforce/.

N/A, N/A. “Workers of the Central and Union Pacific Railroad.” PBS, Public Broadcasting Service, 1996, www.pbs.org/wgbh/americanexperience/features/tcrr-workers-central-union-pacific-railroad/.