Dear Mr. Blum,
Thank you for posting your request on History Hub!
The consuls, consular officers, and their clerks would likely have been tasked with dealing with different portions of the visa application process. In the Central Files of the Department of State, you may be able to research this topic further by reading the instructions (and other correspondence) sent to the office in Warsaw by the Department. You also may see what correspondence regarding visas was sent back to the Department. Please note, however, that almost all outgoing correspondence from Warsaw would likely be signed by the highest ranking official (Davis), which will obscure who is actually doing the work.
It may be possible to verify the positions held by Malige and Davis at the Warsaw consulate using the series titled Card Records of Appointments Made from 1776-1968 in the General Records of the Department of State (Record Group 59). You also may view the Biographic Registers of the Department of State (available on HathiTrust and other repositories) to learn more about each person. Unfortunately, these records will not assist you to learn more about the inner workings of the office in Warsaw.
A 1933 edition of The Department of State of the United States. Prepared in the Office of the Historical Adviser includes some insight into how the consular service was organized generally, and how each role was supposed to function. If you search other relevant publications (many of which are digitally available on HathiTrust) you may find other useful administrative histories. The personal papers of those working at the Consulate may prove useful - as they may provide a deeper story. For example, Anthony Joseph Drexel Biddle Papers are located at the Historical Society of Pennsylvania.
Further, we suggest that you review an article by David Langbart titled “We Found Ourselves Living in the Midst of the Battlefield.” The Experiences of the U.S. Consulate General in Warsaw on the Outbreak of World War II September 1939 available on the website of American Diplomacy as well as an article written by Consul General John K. Davis titled Ordeal in Poland published in the American Foreign Service Journal in June 1940 that is available digitally on the website of the American Foreign Service Association.
We hope this is helpful. Best of luck with your family research!
[Information provided by Cate Brennan, Subject Matter Expert]
Thank you for the leads. Will investigate.