Talk:USS Grayback (SS-208)/@comment-75.69.108.45-20150506225008

I have an original Commendation, dated April 23, 1942, given to my father, Joseph F Greenwood. It states:

1. On the first war patrol conducted by the U.S.S. GRAYBACK, that vessel is credited with having attacked and destroyed two armed enemy merchant vessels of a total of 11,500 tons and a patrol vessel of 260 tons. These vessels were attacked in enemy controlled waters against enemy opposition; the attacks were ably and aggressively consumated. The GRAYBACK returned to base from enemy waters aftrer a severe depth charge attack, with the crew in the best of health and spirits, having suffered no damage or injury to material or personnel.

2. As a member of the crew of the U.S.S. GRAYBACK, you contributed materially to the success of the mission. The Commander Subarmines, Pacific Fleet, takes pleasure in commending you on your performance of duty.

3. A copy of the commendation will be made a part of your official record.

Signed by:  T. Withers, Rear Admiral, US Navy  April 28, 1942

None of the history I can find online mentions the maiden mission destroying 3 vessels. Was this a secret mission? There is limited information available.