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Dear Ms. Dougall,
Thank you for posting your request on History Hub!
Official Personnel Files (OPFs) and medical information for individuals who worked for the U.S. Department of State from 1882 to 1951 and the Department of Justice from 1850 to 1950 are in the custody of the National Archives at St. Louis (RL-SL), P.O. Box 38757, St. Louis, MO 63138.
In your request, please include full name used during Federal employment, date of birth, Social Security Number (if applicable), name and location of employing Federal agency, beginning and ending dates of Federal Service. For more information, the web site is http://www.archives.gov/st-louis/archival-programs/civilian-personnel-archival/index.html.
We hope this information is helpful. Best of luck with your family research!