Dear Mr. Gidari,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located several series that may be helpful to you:
Register of Visitors, 4/12/1934 - 10/6/1938 (Unfortunately, this series only goes back to April 1934)
The Island Lantern, 1928 - 1980 (A journal published by the prisoners of McNeil Island Penitentiary)
- Index to Prisoners, 1893-1908
Some of these records have been digitized and are available using the Catalog. For information about the non-digitized records, please email the National Archives at Seattle (RW-SE) at firstname.lastname@example.org.
Please see here for complete search results, which includes photographs, annual reports, and many other records relating to McNeil Island Penitentiary.
Due to the continued impact of COVID-19, you may experience a delay in receiving an initial acknowledgment as well as a substantive response to your reference request from RW-SE. We apologize for this inconvenience and appreciate your understanding and patience as we balance mission-critical work and the safety of our staff during the pandemic. Please check NARA’s web page about COVID-19 updates for the latest information.
The Department of Corrections, Washington State also maintains a webpage that may interest you: McNeil Island History
We hope this is helpful. Best of luck with your research!