Winlock Card System Used for Correspondence

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A card index, devised by William C. Winlock, is being kept of all letters received and written by the Smithsonian Institution, as well as those pertaining to several bureaus. As of 1899, the index has been extended back to cover letters as early as January 1, 1892.


  • Winlock, William C
  • Smithsonian Institution Archives (SIA)


Chronology of Smithsonian History


Annual Report of the Smithsonian Institution for the year 1899, p. 16-17

Contact information

Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, S.W., Washington, D.C. 20024-2520,


January 1, 1893


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