Title: Correspondence
Subjects: Correspondence, Plants, Botanical specimens, Transportation, Indians of North America, Meteorology, Collection and preservation, Observations, Discovery and exploration, History
Places: United States, Nebraska, Colorado River (Colo.-Mexico), Colorado, Missouri, Yellowstone National Park, Snake River
People: George Engelmann (1809-1884), F. V. Hayden (1829-1887), F. A. Wislizenus (1810-1889), B. F. Shumard (1820-1869), Chester Dewey (1784-1867), William S. Harney (1800-1889), Alexander Culbertson (1809-1879), Benjamin Silliman (1779-1864), Spencer Fullerton Baird (1823-1887), Caleb Burwell Rowan Kennerly (-1861), Joseph Leidy (1823-1891), Elihu Hall (1822-1882), William H. Emory (1811-1887), W. F. Raynolds (1820-1894), J. S. Newberry (1822-1892), Charles P. Chouteau, Alfred Jefferson Vaughan (1800-1871), William Gilpin (1813-1894), G. K. Warren (1830-1882), John Torrey (1796-1873)
Time periods: Civil War, 1861-1865