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The United States Navy Memorial

Navy Memorial Honoring the Men & Women of the Sea Services



Ship Designation: 
Date Lost: 
Friday, March 5, 1943
Lost at Sea

On February 11, 1943, Grampus, in company with Grayback (SS-208), departed Brisbane to patrol the Blackett Strait area. ... Grayback reported sighting Grampus in her assigned area on 4 March. Nothing further was seen or heard of Grampus and her crew of 71 following that date. ... Analysis of Japanese records after the war indicates that IJN destroyers Minegumo and Murakomo attacked and sank a submarine in that area on March 5, possibly by gunfire. Amplifying information is unavailable, since both destroyers were sunk on March 7, with the loss of their logs and battle reports.

Lost At Sea Log

Number of sailors in this log: 71

Namesort descending Service Branch
RM 2c James Thomas USN
EM 2c George Thomas USN
TM 1c Robert Thrasher USN
FC 1c Millard Townley USN
F 1c Roger Trego USN
MM 1c Louis Tremmel USN
EM 2c Myron Tuttle USN
EM 2c Roy Vanderreyden USN
TM 1c Grant Vedder USN
MOMM 2c Wendell Walters USN
MOMM 1c Norman Wilson USN


Prepared by: J.P.O’Hara, CDR, USN (Ret.)