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Pseudonym: Shroyer, Edwin

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Unknown identity. Edwin W. Shroyer was possibly Chief of Station (COS), Buenos Aires, Argentina, in 1968.
Shroyer put his name to three dispatches in 1968 as COS, Buenos Aires. AMSTALK-1 (Miguel Angel Diaz Isalgue) was mentioned in the first two. The third dispatch had a subject slug line which included BIOGENESIS (Argentine federal police). Other cryptonyms beginning with the digraph BI (probably operations and assets in Argentina) were mentioned in this dispatch. Therefore, it is possible that these dispatches were sent from CIA's Buenos Aires station, and Shroyer was the COS.

104-10225-10009: CIA FILE ON ( )SHELL-5.

04/26/68: Dispatch from COS, Buenos Aires to Chief, JMWAVE (Info: Chief, Soviet Bloc Division; Chief, Western Hemisphere Division): Subject: RYBAT REDTOP AERONAUT AETARGET Letter for AMSTALK-1's Wife: "1. Forwarded under cover, please find a letter written by AMSTALK-1 (Miguel Angel Diaz Isalgue) for delivery to his wife. AMSTALK-1 tells us (we certainly agree) that he would prefer for JMWAVE to mail the letter rather than trusting the international mail from here. 2. Incidentally, to date we are highly pleased with AMSTALK-1. We greatly appreciate JMWAVE's assistance in the AERONAUT operation. Edwin W. Shroyer."

104-10225-10012: CIA FILE ON ( )SHELL-5

05/08/68: Dispatch from COS, Buenos Aires to Chief, WH Division (Info: COS, JMWAVE): Subject: RYBAT/REDTOP/AERONAUT/AETARGET/ Signature of AMSTALK-1: "1. Forwarded under separate cover are the signatures requested in References. Edwin W. Shroyer."


08/00/68: Dispatch from COS, Buenos Aires to Chief, SR Division; Chief, WH Division (Info: COS, Panama City): Subject: REDTOP/BIOGENESIS/AETARGET/AEKICK/TECHS: At the bottom of page 2 is Edwin W. Shroyer's name. (Note: BI was probably the digraph for operations and assets in Argentina). Therefore, it is possible that Shroyer was Chief of Station (COS), Buenos Aires, Argentina, in 1968.

Gavin McDonald • Bill Simpich

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