early 1952
The Agency dates its Fort Detrick agreement to the year before Olson's death. The memorandum was written for a Director facing the Rockefeller Commission.
1975-05-20 · 2 source pages
A 1975 CIA memo says the agency could not locate records proving that its biological and toxin materials had been destroyed after Nixon's orders.

The repository dates this memorandum 20 May 1975. Its date stamp is degraded; the reviewed text leaves the month unclear rather than substituting a different month.
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Commentary by The Declassified Collection, separate from the original source.
The Agency dates its Fort Detrick agreement to the year before Olson's death. The memorandum was written for a Director facing the Rockefeller Commission.
Camp Detrick was redesignated Fort Detrick in 1956. The 1953 leaves in Part I use the older name.
The expenditure table introduced on the preceding page is withheld; FY means fiscal year, the annual accounting period. The surviving footnote identifies the figures as estimates but supplies none of the missing amounts.
The memorandum records Nixon's 1969 biological-weapons disposal order and his 1970 extension to toxins. Chamberlain then says records establishing destruction cannot be located. The distinction is between an order to dispose and documentation that disposal occurred.