Theodore Safford Peck (22 Maret 1843 – 15 Maret 1918) adalah seorang veteran Perang Saudara Amerika yang meraih Medal of Honor. Ia juga menerima pangkat mayor jenderal sebagai ajudan jenderal Garda Nasional Vermont.

• Proceedings of the Vermont Historical Society for 1919 to 1920. Vermont Historical Society. 1921. hlm. 64. Proceedings of the Vermont Historical Society for 1919 to 1920.
• Industries and wealth of the principal points in Vermont. New York City: American Publishing and Engraving Company. 1891. Industries and wealth of the principal points in Vermont.
• Carleton, Hiram, ed. (1903). Genealogical and Family History of the State of Vermont. Lewis Publishing company. Genealogical and Family History of the State of Vermont.
• Lew, Wallace (1897). The Story of American Heroism: Thrilling Narratives of Personal Adventures During the Great Civil War. Springfield, Ohio: J.W. Jones.
• Dodge, Prentiss Cutler (1912). Encyclopedia, Vermont biography: a series of authentic biographical sketches of the representative men of Vermont and sons of Vermont in other states. Ullery publishing company. hlm. 265. Encyclopedia of Vermont Biography.
• Ullery, Jacob G. (1894). Men of Vermont: an Illustrated Biographical History of Vermonters and Sons of Vermont. Transcript Pub. Co. Men of Vermont: an Illustrated Biographical History of Vermonters and Sons of Vermont.
• Ward, William H. (1886). Records of Members of the Grand Army of the Republic. H. S. Crocker & co.

• (Inggris) "Theodore S. Peck". Claim to Fame: Medal of Honor recipients. Find a Grave. Diakses tanggal March 23, 2010.
• "Theodore S. Peck". Hall of Valor. Military Times. Diakses tanggal March 23, 2010.
• "Medal of Honor Room page, Vermont in the Civil War web site". Diarsipkan dari asli tanggal 2016-03-03. Diakses tanggal March 23, 2010.
• Home page, T.S. Peck Insurance Agency web site, accessed April 1, 2011