USS Swordfish (SS-193) Ship's Log 
YearDateHistorical Events
1937Oct 27Keel laid down by the Mare Island Naval Shipyard, Vallejo, CA.
1939Apr 1Launched.
 Jul 22Commissioned with LT. Chester C. Smith in command. Following shakedown and post shakedown repairs at Mare Island, Swordfish operated out of San Diego, CA., until early 1941, when she set sail for Pearl Harbor, HI.
1941Nov 3Swordfish, in company with 3 other United States submarines, departed Pearl Harbor, HI.
 Nov 22Swordfish arrived at Manila, Philippine Islands. The submarine remained at Manila until the Japanese attack on Pearl Harbor on 7 December.
 Dec 8Swordfish set sail on her 1st war patrol, conducted off the coast of Hainan, China.
 Dec 16After damaging enemy vessels on the 9th, 11th, and 14th, Swordfish sank her initial victim on 16 December. Hit amidships by 1 of 3 torpedoes, the cargo ship Atsutasan Maru erupted in a cloud of smoke and flames and disappeared beneath the waves.
 Dec 27Swordfish embarked the organizational staff of the Submarines Asiatic Command Staff at Manila and headed for Soerabaja, Java.
1942Jan 7Swordsfish arrived at Soerabaja, Java.
 Jan 16Swordfish departed Soerabaja for her 2nd war patrol, conducted in the Celebes Sea and in the Philippines.
 Jan 24Swordfish torpedoed and sank the cargo ship Myoken Maru off Kema, Celebes Islands.
 Feb 20Swordfish submerged in the entrance to Mariveles, Luzon, only to surface after dark to take on board the President of the Philippines and his family.
 Feb 22Swordfish arrived at San Jose, Panay, Philippine Islands, where the President and his party were transferred to a motor tender. Swordfish then returned to Manila Bay and embarked the High Commissioner of the Philippines.
 Mar 9Swordfish arrived at Fremantle, Western Australia.
 Apr 1Swordfish sailed for her 3rd war patrol, to deliver 40 tons of provisions to the island of Corregidor. Corregidor fell to the Japanese before the mission could be carried out, and she was ordered to patrol in the vicinity of Ambon Island.
 May 1Swordfish returned to Fremantle, Australia.
 May 15Swordfish departed Fremantle, Australia for her 4th war patrol in the South China Sea.
 May 29Swordfish sank a 1,900-ton cargo ship.
 Jun 12Swordfish torpedoed and sank the cargo ship Burna Maru in the Gulf of Siam.
 Jul 4Swordfish returned to Fremantle, Australia.
 Jul 21Swordfish's 5th war patrol, conducted in the Sulu Sea, and her 6th war patrol, conducted in the Solomon Islands, were unproductive. (Exact dates unknown)
1943Jan 19During her 7th war patrol, Swordfish sank the 4,122 ton cargo ship Myoho Maru.
 Feb 23Swordfish returned to Pearl Harbor, HI. and underwent an overhaul.
 Jul 29Swordfish got underway for her 8th war patrol.
 Aug 22Swordfish sighted her 1st target of the patrol, and quickly sent the cargo ship Nishigama Maru to the bottom, the victim of 2 torpedo hits.
 Sep 5A convoy was intercepted, and Swordfish damaged a large tanker before sinking the cargo ship Tenkai Maru.
 Sep 20Swordfish returned to Brisbane, Australia.
 Oct 7Swordfish's 9th war patrol lasted only 3 weeks. Shortly after reaching her assigned patrol area, material defects were discovered, and the submarine had to return to port. (Exact dates unknown)
 Dec 26Swordfish departed for her 10th war patrol, conducted in Tokyo Bay.
1944Jan 16Swordfish sank the converted gunboat Delhi Maru.
 Jan 19Swordfish sank the passenger cargo ship Yamakuni Maru.
 Jan 27Swordfish fired 2 torpedoes at the converted salvage vessel Kasagi Maru, which broke in half and sank.
 Feb 7Swordfish terminated her 10th patrol at Pearl Harbor, HI.
 Mar 13Swordfish put to sea for her 11th war patrol, conducted in the Marianas Islands. Although several enemy ships were damaged during this patrol, no sinkings could be confirmed.
 Apr 29Swordfish returned to Majure.
 May 15Swordfish departed on her 12th war patrol which was conducted in the area of the Bonin Islands. (Exact date unknown)
 Jun 9Swordfish found the Japanese destroyer Matsukaze clearly silhouetted against the horizon and sank the enemy ship with 2 torpedoes from her bow tubes.
 Jun 15Swordfish torpedoed and sank the cargo ship Kanseishi Maru.
 Jun 30Swordfish terminated her 12h patrol at Pearl Harbor, HI.
 Dec 22Swordfish departed Pearl Harbor, HI. to conduct her 13th war patrol, in the vicinity of Nansei Shoto.
1945Jan 2Swordfish was ordered to patrol clear of the Nansei Shoto area until completion of scheduled air strikes. She acknowledged receipt of these orders on 3 January. No further communication was received from Swordfish.
 Feb 15After repeated attempts to contact Swordfish by radio had failed, she was reported as presumed lost, the victim of unknown causes. 89 men lost.