Dear Mr. Hanning,
Thank you for posting your request on History Hub!
We searched the Records of the U.S. Information Agency (Record Group 306) and the General Records of the Department of State (Record Group 59) and located the following series that may have information about American library programs in Europe, including Prague.
- Country, Programs, and Operations Files, 1945 - 1958
- Country Files, 1949 - 1965
- Subject Files, 1945 - 1952
- Records Relating to Culture Centers, 1955 - 1998
- Records Relating to Libraries and Librarianship, 1955 - 1998
- Subject Files, 1955 - 1999
- Transcripts of Oral History Project Interviews, 1988 - 1996
- Histories, 1969 - 1999
- Country Files for Czechoslovakia, 1959 - 1969
- Records Relating to the Advisory Commission on Information, 1955 - 5/1977
These records are in the custody of the National Archives at College Park - Textual Reference (RDT2), which can be contacted via email at Archives2reference@nara.gov. The RDT2 staff will be pleased to make the finding aids to these records available to you or your representative in the Textual Research Room located 8601 Adelphi Road, College Park, MD, near the University of Maryland--College Park campus. The Textual Research Room (Room 2000) hours are 8:45 a.m. to 5:45 p.m., Monday through Friday, except legal holidays. The RDT2 consultation room hours are 8:45 a.m. to 4:00 p.m., Monday through Friday, except legal holidays. No appointment is necessary, however contacting the reference unit prior to your visit can sometimes help identify which records would be most responsive to your specific research needs. Prior to your visit, please consult College Park websites at https://www.archives.gov/dc-metro/college-park/, https://www.archives.gov/dc-metro/self-service-copying.html, and https://www.archives.gov/research/start/getting-started.pdf.
In regards to contacting persons who were involved with the library, the Public Diplomacy Association of American may be able to assist you.
We hope this information is helpful. Best of luck with your research!