Houdek, Jennifer. "The serum run of 1925". LitSite Alaska. University of Alaska Anchorage. Archived from the original on 27 November 2010. Retrieved 26 November 2016.
Houdek, Jennifer. "The serum run of 1925". LitSite Alaska. University of Alaska Anchorage. Archived from the original on 27 November 2010. Retrieved 26 November 2016.
Thomas, Bob (2015). Leonhard Seppala : the Siberian dog and the golden age of sleddog racing 1908–1941. Thomas, Pat. Missoula, Montana: Pictorial Histories Publishing Company. p. 163. ISBN978-1-57510-170-5. OCLC931927411.
Thomas, Bob (2015). Leonhard Seppala : the Siberian dog and the golden age of sleddog racing 1908–1941. Thomas, Pat. Missoula, Montana: Pictorial Histories Publishing Company. p. 71. ISBN978-1-57510-170-5. OCLC931927411.
Seppala, Leonhard (2010). Seppala : Alaskan dog driver. Ricker, Elizabeth M. [Whitefish, Mont.]: [Kessinger Publishing]. p. 295. ISBN978-1-4374-9088-6. OCLC876188456.
Seppala, Leonhard (2010). Seppala : Alaskan dog driver. Ricker, Elizabeth M. [Whitefish, Mont.]: [Kessinger Publishing]. p. 295. ISBN978-1-4374-9088-6. OCLC876188456.
Thomas, Bob (2015). Leonhard Seppala : the Siberian dog and the golden age of sleddog racing 1908–1941. Thomas, Pat. Missoula, Montana: Pictorial Histories Publishing Company. pp. 71–73. ISBN978-1-57510-170-5. OCLC931927411.
Thomas, Bob (2015). Leonhard Seppala : the Siberian dog and the golden age of sleddog racing 1908–1941. Thomas, Pat. Missoula, Montana: Pictorial Histories Publishing Company. p. 67. ISBN978-1-57510-170-5. OCLC931927411.
Thomas, Bob (2015). Leonhard Seppala : the Siberian dog and the golden age of sleddog racing 1908–1941. Thomas, Pat. Missoula, Montana: Pictorial Histories Publishing Company. pp. 67, 69, 162–163. ISBN978-1-57510-170-5. OCLC931927411.