On Eternal Patrol - Lost Submariners of the U.S. Navy
Donald Clifford Day
Rank/Rate Engineman, Third Class Birth Date September 12, 1942 From Kansas City, Missouri Decorations Submarine USS Thresher (SSN-593) Loss Date April 10, 1963 Location Approximately 300 miles off the coast of New England Circumstances Most likely cause of the sinking was a failure in either a pipe, a pipe valve, or a hull weld, causing flooding near the engine room Remarks
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Day, Donald Clifford
