John Torrey

• 
  Daguerreotype, 1840, Harvard University Library, Weissman Preservation Center
• 
  1865, Wisconsin Historical Society, R.A. Lewis, 152 Chatham Street, New York
• 
  Bulletin of the Torrey Botanical Club, Vol. 1, 1870, W. H. Leggett, Editor
• 
  Hunt Institute for Botanical Documentation
• 
  August 15, 1796 – March 10, 1873, Harvard University
• 
  1872-1873, Popular Science Monthly Volume 3