Graves, G.J., Strobridge, E.T., & Sweet, C.N.The Sins of Stephen E. Ambrose The Central Pacific Railroad Photographic History Museum (CPRR.org), December 19, 2000
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Nugent, Walter; Ambrose, Stephen E. (September 2001). "Nothing Like It in the World: The Men Who Built the Transcontinental Railroad, 1863-1869". The Journal of American History. 88 (2): 657. doi:10.2307/2675159. JSTOR2675159.
Hofsommer, Donovan L. (2002). "Nothing Like It in the World: The Men Who Built the Transcontinental Railroad, 1863-1869, and: Empire Express: Building the First Transcontinental Railroad (review)". Technology and Culture. 43 (1): 169–170. doi:10.1353/tech.2002.0018. S2CID110233622.
Minniear, Steven S.; Love, Robert W. (1996). "Review of D-Day June 6, 1944: The Climactic Battle of World War II.; Over Lord: General Pete Quesada and the Triumph of Tactical Air Power in World War II.; The Year of D-Day: The 1944 Diary of Admiral Sir Bertram I. Ramsay., Robert W. Love, Jr.; D-Day 1944". The Journal of Military History. 60 (1): 186–188. doi:10.2307/2944480. JSTOR2944480.
Nugent, Walter; Ambrose, Stephen E. (September 2001). "Nothing Like It in the World: The Men Who Built the Transcontinental Railroad, 1863-1869". The Journal of American History. 88 (2): 657. doi:10.2307/2675159. JSTOR2675159.
Hofsommer, Donovan L. (2002). "Nothing Like It in the World: The Men Who Built the Transcontinental Railroad, 1863-1869, and: Empire Express: Building the First Transcontinental Railroad (review)". Technology and Culture. 43 (1): 169–170. doi:10.1353/tech.2002.0018. S2CID110233622.