Other Lubin releases known to include footage of the same train wreck are A Partner to Providence (1914), The Road O' Strife (1915), Gods of Fate (1916), and The Hour of Disaster (1916).
Solomon, Irene Page (1915). "The Valley of Lost Hope", Motion Picture News (New York, N.Y.), June 26, 1915, p. 85. Retrieved February 5, 2020.
"Siegel, Bernard", actor's filmography includes The Valley of Lost Hope, "Studio Directory", Motion Picture News (New York, N.Y.), October 21, 1916, p. 57. Internet Archive. Retrieved February 4, 2020.
Condon, Mabel (1915). "The Valley of Lost Hope", review, Motography, January 16, 1915, pp. 87–88. Internet Archive. Retrieved January 24, 2020.
"The Valley of Lost Hope", copyright listing, Catalog of Copyright Entries: Motion Pictures, 1912-1939. Washington. D.C.: Library of Congress, 1951, p. 909. Internet Archive. Retrieved February 5, 2020.
"LUBIN", advertisement for upcoming releases, The Moving Picture World, December 12, 1915, p. 1490. ProQuest.
"Release Dates Announced", Motography (Chicago), May 1, 1915, pp. [683]-684. Internet Archive. Retrieved January 29, 2020.
"The Valley of Lost Hope", advertisement for V.L.S.E. releases, Motion Picture Magazine, June 1915, pp. 2–3. Internet Archive. Retrieved February 3, 2020.
"V.L.S.E Program", Motography, July 3, 1915, p. 7. Internet Archive. Retrieved February 5, 2020.
Kennedy, Thomas C. (1915). "The Valley of Lost Hope", Motography, October 23, 1915, p. 857. Internet Archive. Retrieved February 1, 2020.
"Jolo" [Joshua Lowe]. "The Valley of Lost Hope", Variety (New York, N.Y.), October 8, 1915, p. 23. Internet Archive. Retrieved February 1, 2020.
europeanfilmgateway.eu
European Film Gateway, a centralized on-line access and referral point to the holdings of film archives throughout the European Union. Retrieved January 14, 2020.
"A Partner to Providence", episode 8 of the serial The Beloved Adventurer (1914), Lubin Manufacturing Company. The Betzwood Film Archive, a digital history project of WordPress Foundation. Retrieved February 8, 2020.