Cryptonym: EMGRILL-1
A cable from Santo Domingo on September 1, 1963, stated that "faced with officer sit down Rigaud in dire need of 10 unidentified leader types who are unable acquire DR visas. EMGRILL-1 has failed make good assistance promised and has replaced foreign minister who was sympathetic." The comment that EMGRILL-1 replaced the foreign minister implies that E-1 was President of the Dominican Republic. Juan Bosch was President from February to late September of 1963, when he was deposed by the military. Therefore, EMGRILL-1 was probably Juan Bosch.
104-10176-10055: CABLE: FOLL FROM 29 AUG MEETING WITH RIGAUD
08/29/63: Cable from SNTO to Director: Slugline RYBAT EVLUNA KUCURL: "FOLL from 29 Aug meeting with Rigaud: 1. Attempt elicit scoop on Ref A subject produced nothing. He aware vessels potential and will implant idea. 2. Masferrer has failed appear off Siete Hermanos and Gen Vinas Roman plans launch air search lieu that intended by Rigaud. Rigaud telephoned unidentified person NY 29 Aug to learn IDEN Cuban vessel. This produced nothing but codeword 'POSO' which Masferrer will IDEN himself to Haitians/Dominicans via radio or other means. 3. Verma Vice Rigaud departed SNTO for Dajabon early 29 Aug bearing Vinas Roman message to (REDACTION)LUSH-1 to get into Haiti and stay there. While Vinas Roman apparently interested resumption hostilities to lend credence story that rebels are Haiti based the urgency factor lacking. Rigaud claims (REDACTION)LUSH-1 move by 1 Sep. (Comment above appears insufficient reason to take Verna from SNTO. Does HQS know if he or Rigaud acquainted with Masferrer?). 4. IDEN of pilot is Alexander Rorke, probably Rourke. 5. Rigaud claims (REDACTION)GRILL-1's current interest assisting exiles stems from visit UNIDEN emissary of Nunoz Marin who recommended good support to exiles. Emissary described as president of national assembly. 6. Six sheets covering northwest Haiti passed Rigaud accordance Ref B. C/S Comment: Requested confirm capture Haiti coast guard LT by DR."
104-10176-10054: CABLE, FOLL FROM 28 AUG MEETING WITH RIGAUD.
08/29/63: Cable from SNTO to Director: ACTION: WH/8 (MR. CAPRARO, WH NOTIFIED AND COPY SLOTTED 2200 28 AUG BP): Slugline EVLUNA KUCURL: Page 2: ..."6. Rigaud continued stating EMGRILL-1 now anxious assist exiles and only awaiting departure of OAS. This from Gen Vinas Roman who spoke EMGRILL-1 this subject 28 Aug..."
104-10176-10059: CABLE, STILL NO TRACE MASFERRER.
09/01/63: Cable from SNTO to Director: ACTION: WH/8 (MR. CAPRARO, WH NOTIFIED AND COPY SLOTTED 2230 31 AUG 63 BP): Slugline RYBAT EVLUNA KUCURL: Page 2: ..."4. Faced with officer sit down Rigaud in dire need of 10 unidentified leader types who are unable acquire DR visas. EMGRILL-1 has failed make good assistance promised and has replaced foreign minister who was sympathetic..."
https://www.britannica.com/biography/Juan-Bosch
"Juan Bosch, in full Juan Bosch Gaviño, (born June 30, 1909, La Vega, Dominican Republic—died November 1, 2001, Santo Domingo), Dominican writer, scholar, and politician elected president of the Dominican Republic in 1962 but deposed less than a year later. Bosch, an intellectual, was an early opponent of Rafael Trujillo’s dictatorial regime. He went into exile in 1937 and in 1939 founded the leftist Dominican Revolutionary Party (Partido Revolucionario Dominicano; PRD). The PRD was the first well-organized political party of the Dominican Republic and the only one with a constructive program ready to implement after Trujillo’s death in 1961. Bosch, a dazzling and charismatic orator, won a landslide victory in the elections of December 20, 1962. He was the first politician to directly address the peasantry, a heretofore ignored group that gave him an overwhelming majority in the election. Bosch not only appealed to the poor but also cut across class lines to win the favour of the middle class and intellectuals. Entering office on February 27, 1963, Bosch faced serious problems at the outset of his term. The United States was at odds with Fidel Castro’s government in Cuba and leery of the slightest hint of leftist politics in the Caribbean. This fear was fed by damaging reports of the new regime from a skeptical U.S. ambassador in the Dominican Republic. Bosch’s constitution of April 29, liberal and democratic, alienated four powerful groups in the country: landholders, even small ones, were frightened by his prohibition against latifundia (large plantation-type farms); the Roman Catholic church was angered by the secular nature of the constitution; industrialists felt the constitution was worker-oriented; and the military considered that its powers were curtailed. On September 25, 1963, the military deposed Bosch. Two years later his followers staged a rebellion in hopes of returning Bosch to power..."