Dear Mr. Zhuk,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the series General Records, 1940-1963 in the Records of the Foreign Service Posts of the Department of State (Record Group 84) for the U.S. Embassy in the Union of Soviet Socialist Republics. We also located the Central Decimal Files, 1910 - 1963 in the General Records of the Department of State (Record Group 59) along with the Name Index, 1910 - 1973 that may include references to the individuals you seek. For access to these records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org.
Regarding the names of naval attaché staff, records like muster rolls are only related to enlisted personnel and do not list officers due to a policy held by the Bureau of Naval Personnel. If you are looking for the yeoman and other enlisted personnel that were part of the naval attaché staff in Moscow, then you may be able to locate them in the series Muster Rolls and Personnel Diaries of U.S. Navy Ships, Stations, and Other Naval Activities, 1/1/1949 - 12/31/1971 in the Records of the Bureau of Naval Personnel (Record Group 24). For possible information about the officers working in Moscow in 1955, please review the series Logbooks and Registers of Naval Attache Reports, 1944 - 1962 in the Records of the Office of the Chief of Naval Operations (Record Group 38). You also may locate relevant information in the series General Correspondence, 1945 - 1956 from Record Group 38 that consists of memoranda, letters, plans, and other records relating to, among other topics, intelligence collection plans of naval attaches and other naval units. Reports and correspondence would be signed or authored by the staff but signatures on the reports are those of the senior officer filing the report. The names of junior officers or subordinate officers who worked on the reports may not be included. Please note that some confidential and secret Naval Attache reports still may be classified. For further assistance with these records, please contact RDT2.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT2. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this information is helpful. Best of luck with your research!
[Some information provided by Nate Patch, Subject Matter Expert.]