Dear Ms. Kennedy,
Thank you for posting your request on History Hub!
If you have not done so already, we suggest that you request a copy of your mother’s Official Personnel File (OPF). OPFs and medical information for individuals who worked for the U.S. government in a civilian capacity before 1952 are in the custody of the National Archives at St. Louis (RL-SL). Please email RL-SL via email at email@example.com and include the full name used during Federal employment, date of birth, Social Security Number (if applicable), name and location of the employing Federal agency, beginning and ending dates of Federal Service. For more information, please check the Official Personnel Folders (OPF), Archival Holdings and Access website.
Next, we searched the National Archives Catalog and located the series Classified Central Decimal Files, 1940-1948 in the Records of the Office of the Chief Signal Officer (Record Group 111) that includes some information about Signal Corps schools that may be useful for your research. The series Records Concerning Field Offices, 1940-1955 in Record Group 111 contains some information related to Chicago that might be of interest to you as well. These records have not been digitized. Please contact the National Archives at College Park - Textual Reference (RDT2) at firstname.lastname@example.org for assistance with these and similar records.
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 RL-SL and RDT2. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your family research!
Thank you, this is most helpful. I will follow through on your recommendations.