Dear Mr. Cramer,
Thank you for posting your question on History Hub!
The information you seek may be in his Official Military Personnel File (OMPF). Official Military Personnel Files (OMPFs) and medical records of enlisted men of the U.S. Navy who were separated from the service after 1885 and prior to 1955 are located at NARA's National Personnel Records Center (NPRC), (Military Personnel Records), 1 Archives Drive, St. Louis, MO 63138-1002. To request these records, please mail a completed GSA Standard Form 180 to NPRC. Or you may apply online at https://www.archives.gov/veterans/military-service-records/.
We hope this is helpful. Best of luck with your family research!