Dear Ms. Johnson,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located Casualty Statistics Files, 1942 - 1945 and World War II Casualty Reports, 1939 - 1945 in the Records of the Bureau of Naval Personnel (Record Group 24) as well as Records Relating to Strength and Casualties (documenting 1775 - 1972) in the Records of the U.S. Marine Corps (Record Group 127). These series may include the statistics you seek. For more information about these non-digitized records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at Archives2reference@nara.gov.
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 RDT2. 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.
We hope this is helpful. Best of luck with your research!
[information provided by Nate Patch, Subject Matter Expert]