US National Archives, College Park Maryland
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RG 225, Box 1, Army-Navy Munitions Board, Commodities Division, Reference File 1932-1944, File: Strategic Materials, Requirements of the U.S., Compiled 1934. Note Manila hemp (abaca), other hard fibers (jute, sisal), and opium all on the original list.
Appendix to April 3, 1934 document above, sheets 1 and 2.
Appendix to April 3, 1934 document above, sheets 3 and 4. Manila hemp (abaca), other hard fibers, and opium all listed on sheet 3.
Strategic and Critical Materials Map, US National Archives, Record Group 225, Box 1, Records of the Army-Navy Munitions Board, Commodities Division, Reference File 1932–1944, Folder: Strategic Materials, Requirements of the US, compiled 1934. Note only source of "Manila fibre" (abaca) is the Philippines.
Special Board to make a study of naval needs and interests in connection with Strategic Raw Materials, August 7, 1936, RG 225, Joint Army-Navy Munitions Board Correspondence, Microfilm Roll 1421, Reel 10, Folder: J.B. No 325 (Serial 596), Stock Piles of Strategic and Critical Materials. Note Manila hemp (abaca), other hard fibers, and opium all on the most-needed-but-hardest-to-acquire Strategic list.
Plate No. 3, Japanese Trade (and blow-up of Philippines exports to Japan section) appended to November 12, 1938 document, RG 225, Joint Army-Navy Munitions Board Correspondence, Microfilm Roll 1421, Reel 10, Folder: J. B. No. 325 (Serial 634), Study of Joint Action in Event of Violation of Monroe Doctrine by Fascist Powers.
Map of licit cannabis sativa (i.e. "American" hemp) growing areas shaded in red, designated by FBN, (no date on document, but not earlier than January 1941), RG 170, ACC 170-74-5 (Entry 9), DEA records, Subject Files of the FBN 1916-1970, Box 109, File 0840-36-2 A, Marihuana, War Hemp Production.
1940-1943 Manila Fiber Imports, Stocks, and Requirements, date as of July 22, 1942,
RG 179, War Production Board, Policy Documentation File, Entry 1, Box 1802, Folder 544. 311, Manila-Supply.
Note simultaneously precipitous decline of abaca supply and increase in abaca requirements.
Combined Raw Materials Board, Decision No. 4, March 3, 1942, RG 179, War Production Board, Policy Documentation File, Entry 1, Box 1801, Folder 544. 31, Manila-Supply.
Note the call for massive increase in domestic cannabis sativa (i.e. "American" hemp) cultivation to address the shortfall in essential abaca.