This document indicates that Raymond Gerende is the pseudonym for Ramon Joseph Alvarez. The last two pages of this dispatch show that his cryptonym was LIEMPTY-1.
This renewal of LIEMPTY for the 1963 period shows GERENDE as the lead agent in the project by salary, with two other agents under him, and then LIEMPTY-4 through LIEMPTY-24 below. The preceding pages describe his leadership role.
Gerende ran the three photographic basehouses watching the Soviet compound, he ran LIENTRAP (photo stakeouts), and he provided "operational support to Station basehouses; i.e., to rent hotel rooms and apartments, and conduct counter-surveillances."
4/8/63 dispatch from COS Win Scott to C/WH J.C. King: "Raymond H. GERENDE, the second cutout under the LIEMPTY project, provided support to the AMSTRUT operation by obtaining, under difficult conditions and minimum advance warning, a secure and suitable safe apartment for the use of WAVE case officers in the debriefing and training of AMSTRUT-2."
Sept-Oct 1963: "In 1963 when Oswald allegedly visited the Soviet embassy, Scantling was the (principal agent) for the LIMITED base and LIEMPTY-6 (UNKNOWN)(REDACTED) was the photo tech who took the pictures...(Ramon Alvarez/LIEMPTY-1) was presumably the individual who developed the photos which LIEMPTY-6 took, as well as the photo tech coverage of the other two basehouses." Chrono sheet on Ramon Alvarez Durant.
10/8/63 technical interrogation (LCFLUTTER) of Ramon Alvarez: "The purpose of this interrogation was primarily to determine whether or not Subject is in secret contact with or providing information to any other intelligence organization. Also covered during the interrogation were questions pertaining to Subject's revelation of (CIA) affiliation, communist sympathies and membership, and vulnerability to blackmail." This interrogation was conducted just days after the alleged Lee Oswald visit to Mexico City, and is one of the few surviving copies of what were more than 20 interrogations conducted during October 1963 to key Mexico City personnel.
1978 Appendix 3 to HSCA Procedural Write-Up to Mexico City Trip 2: "HSCA staffers Edwin Juan Lopez and Harold Leap traveled to Mexico City on 8/7/78. The staff members were met by David T. Patton at the Mexican airport at 10:15 pm. Mr. Patton then checked the staffers into Room 1754 at the Maria Isabel Hotel...Steinfeld, CIA Chief of Station in Mexico City, wished to see us at 8:30 am the following day. On Tuesday, August 8, 1978, Committee staffers met with Larry Sternfield. He informed the staffers that the two individuals that the Committee wished to interview, Daniel Flores aka Luis Aparicio and Ramon Alvarez Durant, were now available. At 9:30 am, 8/8/78, Committee members interviewed Danny Flores. (See write-up of Danny Flores interview). The interview ended at approximately 10:15 am...Mr. Steinfeld stated that the HSCA's interview with Ramon Alvarez Durant was considered 'highly sensitive'. He explained that three rooms at a nearby hotel would be used. In one room Ramon Alvarez Durant would sit, Committee staff members would sit in a second room, and two CIA personnel officers would insure that the equipment worked properly in a third room. Mr. Steinfield then telephoned Mr. Niles Gooding, who had been sent to the Mexico City Station from Headquarters to arrange the procedures for the interviews."