Patrol 1

10 Jul 1943- 23 Aug 1943

ていむず丸 Thames Maru

Patrol 2

12 Sep 1943 - 5 Nov 1943

No sinkings

Patrol 3

29 Nov 1943- 28 Jan 1944

Sampan (No. 17 painted on its bow) sunk by gunfire; small vessel not credited to Pompon in JANAC

Patrol 4

22 Feb 1944 - 10 Apr 194

Patrol 5

6 May 1944 - 25 Jun 1944

Patrol 6

19 Jul 1944 - 3 Sep 1944

まやち丸 Mayachi Maru

Patrol 7

6 Jan 1945 - 11 Feb 1945

Patrol 8

30 Mar 1945 - 24 May 1945

Patrol 9

18 Jun 1945 - 22 Jul 1945

Current research credits Pompon with sinking 3 ships, totalling 8,772 tons, plus an unidentified sampan of unknown tonnage. These figures are the same for Alden-McDonald.

JANAC - 3 ships, 8,772 tons, Note that the criteria JANAC used included all Japanese Naval vessels (although JANAC did not usually count warships less than 500 tons that were converted from merchant ships) and all Japanese merchant vessels of 500 or more gross tons known or believed to have been lost during the war. Differences between JANAC figures and current research are noted above.

SORG credits Pompon with 6 ships and 13,300 tons sunk, including a sampan of uncknown tonnage.

Japanese Naval and Merchant Ship Losses - JANAC on the NHHC website

JANAC on the Hyperwar website - https://www.ibiblio.org/hyperwar/Japan/IJN/JANAC-Losses/JANAC-Losses-6.html

SORG- http://archive.hnsa.org/doc/subreports-sorg.htm (Excel spreadsheet download)

Archives of the Pacific Fleet Submarine Museum (PFSM)

War Patrol Reports - USS Pompon

Monthly Losses of Combatant and Non-Combatant Vessels

太平洋戦争時の喪失船舶明細表（汽船主体）- Lost Vessel table during the Pacific War (merchant vessels)

Alden, John D., and McDonald, Craig R. - U.S. & Allied Sub Successes in the Pacific & Far East during WWII - Fourth Edition, 2009

Cressman, Robert - The Official Chronology of the U.S. Navy in World War II, Naval Institute Press, 2000.

Enright, Joseph F. - Shinano! The Sinking of Japan's Secret Supership, St. Martin's Press, 1987.

Wrecksite - https://www.wrecksite.eu/wrecksite.aspx

Miramar Ship Index - https://www.miramarshipindex.nz/

Imperial Japanese Navy Page - http://www.combinedfleet.com/

Wikipedia Japan - https://ja.wikipedia.org/wiki/

Japan Center for Asian Historical Records - National Archives of Japan - https://www.jacar.go.jp/index.html

Official U.S. Navy Photos - Naval History & Heritage Command

Archives of the Pacific Fleet Submarine Museum (PFSM)

Japanese Merchant Ship photos - Wrecksite - copyright owners retain all rights. Photos used on this site will be taken down should the owner request their removal.