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.

Diamond, Sidney (1922-1945) to Estelle Spero

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Gilder Lehrman Collection #: GLC09120.049 Author/Creator: Diamond, Sidney (1922-1945) Place Written: Edgewood Arsenal, Maryland Type: Autograph letter signed Date: 23 June 1942. Pagination: 4 p. ; 18.5 x 27 cm. Order a Copy

Describes a simulated "moving up" maneuver that the company had carried out early in the morning. Sid then goes on to detail the rest of the day's events which included a lecture on meteorology, a session on map-reading and map-making and a session on the impact of different weather conditions on chemical operations.

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