25 Oct 1922
United States
United States
- USS S-35 was decommissioned from service at Groton, Connecticut, United States for engine enhancement work by the Electric Boat Company. ww2dbase [S-35 | Groton, Connecticut | CPC]
22 Jan 1924
United States
United States
- USS S-27 was commissioned into service at Groton, Connecticut, United States. ww2dbase [S-27 | Groton, Connecticut | CPC]
6 Jun 1935
United States
United States
- The keel of submarine Permit was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Permit | Groton, Connecticut | CPC]
22 Jul 1936
United States
United States
- The keel of submarine Skipjack was laid down by the Electric Boat Company at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Skipjack | Groton, Connecticut | CPC]
5 Oct 1936
United States

United States
- Submarine Permit was launched at Groton, Connecticut, United States, sponsored by the wife of Harold G. Bowen. ww2dbase [Electric Boat Company | Permit | Groton, Connecticut | CPC]

28 Jun 1937
United States

United States
- Sargo-class submarine Saury was laid down at the Electric Boat Company, Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Saury | Groton, Connecticut | DS]

9 Sep 1937
United States
United States
- Sargo-class submarine Spearfish was laid down at the Electric Boat Company, Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Spearfish | Groton, Connecticut | DS]
23 Oct 1937
United States
United States
- Submarine Skipjack was launched at Groton, Connecticut, United States, sponsored by Miss Frances Cuthbert Van Keuren. ww2dbase [Electric Boat Company | Skipjack | Groton, Connecticut | CPC]
20 Aug 1938
United States
United States
- Sargo-class submarine Saury was launched at the Electric Boat Company, Groton, Connecticut, United States. The boat was sponsored by Mrs. Mary E. Casbarian who, as a civilian employee of the Navy, was responsible for arranging the sponsorships of all Navy ships in the region. In this case, she, herself, was the sponsor. ww2dbase [Electric Boat Company | Saury | Groton, Connecticut | DS]
29 Oct 1938
United States
United States
- Sargo-class submarine Spearfish was launched at the Electric Boat Company, Groton, Connecticut, United States, with Mrs. Lillian Spear (wife of Electric Boat Company president) as sponsor. ww2dbase [Electric Boat Company | Spearfish | Groton, Connecticut | DS]
1 Mar 1939
United States
United States
- The keel of submarine Tautog was laid down at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Tautog | Groton, Connecticut | CPC]
3 Apr 1940
United States
United States
- The keel of submarine Grayback was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Grayback | Groton, Connecticut | CPC]
10 Dec 1940
United States
United States
- USS R-1 departed Groton, Connecticut, United States with Submarine Squadron 3 of Submarine Division 42. ww2dbase [R-1 | Groton, Connecticut | CPC]
31 Jan 1941
United States

United States
- Submarine Grayback was launched in Groton, Connecticut, United States, sponsored by the wife of Rear Admiral Wilson Brown, who was the Superintendent of the United States Naval Academy. ww2dbase [Electric Boat Company | Grayback | Groton, Connecticut | CPC]

10 Feb 1941
United States
United States
- Submarine Growler was laid down at the Electric Boat Company, Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Growler | Groton, Connecticut | DS]
21 Jul 1941
United States
United States
- The keel of submarine Gunnel was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Gunnel | Groton, Connecticut | CPC]
22 Nov 1941
United States



United States
- Submarine Growler was launched at the Electric Boat Company, Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Growler | Groton, Connecticut | DS]



1 Dec 1941
United States
United States
- The keel of submarine Harder was laid down by the Electric Boat Company at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Harder | Groton, Connecticut | CPC]
2 Jan 1942
United States
United States
- Submarine Hoe was laid down by the Electric Boat Company of Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Hoe | Groton, Connecticut | CPC]
20 Mar 1942
United States
United States
- Submarine USS Growler was commissioned at the Electric Boat Company, Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Growler | Groton, Connecticut | DS]
17 May 1942
United States
United States
- Submarine Gunnel was launched at Groton, Connecticut, United States, sponsored by the wife of US Navy Chief of the Bureau of Yards and Docks Ben Morell. ww2dbase [Electric Boat Company | Gunnel | Groton, Connecticut | CPC]
5 Jun 1942
United States
United States
- The keel of submarine Bluefish was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Bluefish | Groton, Connecticut | CPC]
22 Jul 1942
United States
United States
- The keel of submarine USS Dace was laid down by the Electric Boat Company at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Dace | Groton, Connecticut | CPC]
19 Aug 1942
United States

United States
- Submarine Harder was launched at Groton, Connecticut, United States, sponsored by Miss Helen M. Shaforth. ww2dbase [Electric Boat Company | Harder | Groton, Connecticut | CPC]

24 Aug 1942
United States
United States
- The keel of submarine Cero was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Cero | Groton, Connecticut | CPC]
27 Aug 1942
United States

United States
- The keel of submarine Dorado was laid down by the Electric Boat Company at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Dorado | Groton, Connecticut | CPC]

21 Sep 1942
United States
United States
- The keel of the future US Navy submarine Corvina was laid down at the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Corvina | Groton, Connecticut | CPC]
30 Oct 1942
United States
United States
- The keel of submarine Flier was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Flier | Groton, Connecticut | CPC]
5 Jan 1943
United States
United States
- The keel of submarine Gabilan was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Gabilan | Groton, Connecticut | CPC]
21 Feb 1943
United States


United States
- Submarine Bluefish was launched at Groton, Connecticut, United States, sponsored by the wife of Robert Y. Menzie. ww2dbase [Electric Boat Company | Bluefish | Groton, Connecticut | CPC]


25 Mar 1943
United States
United States
- The keel of submarine Barbero was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Barbero | Groton, Connecticut | CPC]
4 Apr 1943
United States

United States
- Submarine Cero was launched at Groton, Connecticut, United States, sponsored by Mrs. D. E. Barbey. ww2dbase [Electric Boat Company | Cero | Groton, Connecticut | CPC]

9 May 1943
United States
United States
- USS Corvina was launched at Groton, Connecticut, United States, sponsored by Mrs. R. W. Christie. ww2dbase [Electric Boat Company | Corvina | Groton, Connecticut | CPC]
13 May 1943
United States
United States
- The keel of Bergall was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Bergall | Groton, Connecticut | CPC]
23 May 1943
United States


United States
- Submarine Dorado was launched at Groton, Connecticut, United States, sponsored by the wife of Ezra G. Allen. ww2dbase [Electric Boat Company | Dorado | Groton, Connecticut | CPC]


24 Jun 1943
United States
United States
- Submarine Caiman was laid down by the Electric Boat Company at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Caiman | Groton, Connecticut | CPC]
11 Jul 1943
United States
United States
- Submarine Flier was launched at Groton, Connecticut, United States. sponsored by the wife of A. S. Pierce. ww2dbase [Electric Boat Company | Flier | Groton, Connecticut | CPC]
12 Aug 1943
United States
United States
- The keel of submarine Boarfish was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Boarfish | Groton, Connecticut | CPC]
26 Aug 1943
United States
United States
- The keel of submarine Charr was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Charr | Groton, Connecticut | CPC]
16 Sep 1943
United States
United States
- The keel of submarine Chub was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Chub | Groton, Connecticut | CPC]
18 Sep 1943
United States
United States
- USS Corvina departed Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Corvina | Groton, Connecticut | CPC]
19 Sep 1943
United States

United States
- Submarine Gabilan was launched at Groton, Connecticut, United States, sponsored by the wife of Rear Admiral Jules James. ww2dbase [Electric Boat Company | Gabilan | Groton, Connecticut | CPC]

23 Sep 1943
United States
United States
- The keel of submarine Brill was laid down by the Electric Boat Company in Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Brill | Groton, Connecticut | CPC]
2 Dec 1943
United States
United States
- The keel of submarine Capitaine was laid down by the Electric Boat Company at Groton, Connecticut, United States. ww2dbase [Electric Boat Company | Capitaine | Groton, Connecticut | CPC]
12 Dec 1943
United States

United States
- Submarine Barbero was launched at Groton, Connecticut, United States, sponsored by Mrs. Katherine R. Keating. ww2dbase [Electric Boat Company | Barbero | Groton, Connecticut | CPC]

2 Jan 1944
United States

United States
- Submarine Baya was launched by the Electric Boat Company in Groton, Connecticut, United States, sponsored by the wife of US Navy Lieutenant Commander C. C. Kirkpatrick. ww2dbase [Electric Boat Company | Baya | Groton, Connecticut | CPC]

16 Feb 1944
United States
United States
- Bergall was launched at Groton, Connecticut, United States, sponsored by Mrs. J. A. Elkins. ww2dbase [Electric Boat Company | Bergall | Groton, Connecticut | CPC]
12 Mar 1944
United States
United States
- Submarine Blackfin was launched by the Electric Boat Company in Groton, Connecticut, United States, sponsored by the wife of US Navy Rear Admiral Charles A. Lockwood. ww2dbase [Blackfin | Groton, Connecticut | CPC]
9 Apr 1944
United States
United States
- Submarine Blenny was launched at Groton, Connecticut, United States, sponsored Florence King, daughter of Admiral Ernest King. ww2dbase [Electric Boat Company | Blenny | Groton, Connecticut | CPC]
21 May 1944
United States
United States
- Submarine Boarfish was launched at Groton, Connecticut, United States, sponsored by Miss Barbara Walsh, daughter of Senator Arthur Walsh of the US state of New Jersey. ww2dbase [Electric Boat Company | Boarfish | Groton, Connecticut | CPC]
18 Jun 1944
United States
United States
- Submarine Chub was launched at Groton, Connecticut, United States, sponsored by Mrs. T. A. Risch. ww2dbase [Electric Boat Company | Chub | Groton, Connecticut | CPC]
25 Jun 1944
United States
United States
- Submarine Brill was launched at Groton, Connecticut, United States, sponsored by the wife of Rear Admiral Francis Low. ww2dbase [Electric Boat Company | Brill | Groton, Connecticut | CPC]
1 Oct 1944
United States
United States
- Submarine Capitaine was launched at Groton, Connecticut, United States, sponsored by Mrs. J. A. Rondomanski. ww2dbase [Electric Boat Company | Capitaine | Groton, Connecticut | CPC]
29 Jun 1945
United States
United States
- USS R-1 arrived at Groton, Connecticut, United States. ww2dbase [R-1 | Groton, Connecticut | CPC]
7 Jul 1945
United States
United States
- USS R-1 departed Groton, Connecticut, United States for the Fleet Sonar School at Key West, Florida, United States. ww2dbase [R-1 | Groton, Connecticut | CPC]
27 Jun 1976
United States
United States
- Submarine Croaker was designated as a museum ship at Groton, Connecticut, United States. ww2dbase [Croaker | Groton, Connecticut | CPC]
Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis
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"Among the men who fought on Iwo Jima, uncommon valor was a common virtue."Fleet Admiral Chester W. Nimitz, 16 Mar 1945
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