S. P. Langley Named Director of Observatory
Samuel P. Langley becomes director of the Smithsonian Astrophysical Observatory. He serves until his death in 1906. In 1907 Charles G. Abbot becomes director, followed by Loyal B. Aldrich in 1944, and Fred L. Whipple in 1955.
Chronology of Smithsonian History
Guide to Smithsonian Archives. Washington, D.C.: Smithsonian Institution Press, 1983. Archives and Special Collections of the Smithsonian Institution Number 4., p. 125
Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, S.W., Washington, D.C. 20024-2520, SIHistory@si.edu
March 2, 1890