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THE INTREPID SEA, AIR, AND SPACE MUSEUM, NEW YORK CITY.
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Dear Mr. Ludwikowski,
Thank you for posting your request on History Hub!
We searched the Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities, 1/1/1939 - 1/1/1949 in the Records of the Bureau of Naval Personnel (Record Group 24) and were unable to locate a listing for Edmund Laskiewicz but we did locate a listing for Edmund Emil Leszkiewicz (service number 728 26 46) on the USS Sanborn (APA-193) in 1946. Please note that if he was an officer, he would not be listed on the muster rolls.
We suggest that you request a copy of his Official Military Personnel File (OMPF). OMPFs and medical records of enlisted men and officers of the U.S. Navy who were separated from the service prior to 1958 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. If there is any information requested by the form which you do not know, you may leave it blank or provide estimates, however the more information you provide, the easier it is for NPRC staff to locate the correct files. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
Due to the coronavirus public health emergency, the National Personnel Records Center is servicing only urgent requests related to homeless veterans, medical emergencies, and funerals which may be faxed to 314-801-0764. We thank you for your patience and look forward to resuming normal operations when the public health emergency has ended.
We hope this is helpful. Best of luck with your family research!