Young, Charles Augustus. Born at Hanover, New Hampshire, December 15, 1834; graduated at Dartmouth, 1858; professor of astronomy at Princeton, 1877-1905; died at Hanover, New Hampshire, January 4, 1908.
Langley, Samuel Pierpont. Born at Roxbury, Boston, August 22, 1834; secretary Smithsonian Institution, 1887-1908.
Newcomb, Simon. Born at Wallace, Nova Scotia, March 12, 1835; came to United States, 1853; graduated Lawrence Scientific School, 1858; professor of Mathematics, U. S. navy, 1861; director Nautical Almanac office, 1877-97; professor mathematics and astronomy Johns Hopkins University, 1884-94; died at Washington, July 11, 1909.
Pickering, Edward Charles. Born at Boston, July 19, 1846; graduated Lawrence Scientific School, 1865; professor of astronomy and director of Harvard Observatory since 1877.
Marsh, Othniel Charles. Born at Lockport, New York, October 29, 1831; professor paleontology Yale University, 1866, to death at New Haven, March 18, 1899.
Cope, Edward Drinker. Born at Philadelphia, July 28, 1840; professor of natural sciences, Haverford College, 1864-67; paleontologist to United States Geological Survey, 1868 to death at Philadelphia, April 12, 1897.
Silliman, Benjamin. Born at North Stratford, Connecticut, August 8, 1779; graduated at Yale, 1796; tutor there, 1799, and professor, 1802; professor emeritus, 1853; died at New Haven, Connecticut, November 24, 1864.
Dana, James Dwight. Born at Utica, New York, February 12, 1813; graduated at Yale, 1833; assistant to Professor Silliman, 1836-38; professor of geology and natural history, 1850-64; died at New Haven, April 14, 1895.
Newberry, John Strong. Born at Windsor, Connecticut, December 22, 1822; professor of geology at school of mines, Columbia College, 1866-90; state geologist of Ohio, 1869; died at New Haven, Connecticut, December 7, 1892.
Whitney, Josiah Dwight. Born at Northampton, Massachusetts, November 23, 1819; graduated at Yale, 1839; geologist with New Hampshire survey, 1840-42; Lake Superior, 1847-49; state chemist of Iowa, 1855; state geologist of California, 1860-74; professor of geology at Harvard, 1865 to death at Lake Sunapee, New Hampshire, August 18, 1896.