Our Collection

At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 85,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World through the end of the twentieth century.

Kelpe, Dexter Elmer, 1902-1963 Officer's Clearance Certificate

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Gilder Lehrman Collection #: GLC10047.03.064 Author/Creator: Kelpe, Dexter Elmer, 1902-1963 Place Written: s.l. Type: Typed document signed Date: February 20, 1946 Pagination: 1 p. ; Order a Copy

One document entitled Officer's Clearance Certificate signed by Dexter E. Kelpe dated February 20, 1946. A checklist of cleared facilities.

Kelpe, Dexter Elmer, 1902-1963

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