| Year | Date | Historical Events |
| 1944 | Mar 16 | Keel laid down by the Electric Boat Co., Groton, CT. |
| 1945 | Feb 25 | Launched. |
| | Jun 28 | Commissioned with CDR. S.C. Loomis, Jr., in command. |
| | Sep 5 | Clamagore reported to Key West, FL. where she operated with various fleet units and with Fleet Sonar School. |
| 1947 | Dec 5 | Clamagore entered the Philadelphia Naval Shipyard,Philadelphia, PA., for GUPPY II modernization and installation of snorkel. |
| 1948 | Aug 6 | Clamagore returned to Key West, FL. to assume local and Caribbean operations for the next 8 years. |
| 1957 | Jan 1 | Clamagore called at New London, CT. and Newport, RI. |
| | Mar 13 | Clamagore returned to Key West, FL. |
| | Sep 23 | Between 23 September and 7 December Clamagore took part in NATO exercises in the North Atlantic, calling at Portsmouth, England, and Argentia, Newfoundland. |
| 1959 | Jun 29 | Clamagore arrived Charleston, SC., new home port. |
| 1960 | Apr 5 | lamagore joined the 6th Fleet in the Mediterranean for duty. |
| | Jul 1 | Clamagore returned to Charleston, SC. For the remainder of 1960 Clamagore operated off the East Coast. |
| 1962 | Jan 1 | Clamagore became one of only 9 boats to undergo the GUPPY III conversion. She had a 15 foot hull extension added forward of the control room, a plastic sail and the BQG-4 PUFFS passive ranging sonar, which include the 3 sharkfin sensors on her deck. |
| 1963 | Jun 1 | Clamagore finished her GUPPY III conversion, and was transferred to New London, CT. |
| 1964 | Jan 1 | Clamagore participated in Springboard, 1964, visiting San Juan, Puerto Rico and St. Croix, Virgin Islands. |
| | May 30 | Clamagore entered the Portsmouth Naval Shipyrd, Kittery, ME., for battery renewal. |
| | Jul 1 | Leaving the shipyard, Clamagore visited Portsmouth, England. After an extended cruise, Clamagore returned to New London, CT. |
| 1965 | Apr 1 | Clamagore departed New London, CT. for a joint NATO operation south of Iceland with British, Dutch, American, and French submarines and aircraft. |
| | May 1 | Upon completion of the very successful exercise, Clamagore visited Londonderry in Northern Ireland for a wash-up conference. |
| | Jun 1 | Clamagore returned to New London, CT. |
| | Jul 23 | Clamagore entered the Philadelphia Naval Shipyard, Philadelphia, PA. |
| 1966 | Jan 1 | In early 1966 Clamagore was devoted to Springboard deployments and various other operational tasks. |
| 1967 | Mar 1 | Clamagore entered the Portsmouth Naval Shipyard, Kittery, ME., for battery renewal. Upon leaving the shipyard, she joined the Fleet for a Mediterranean deployment. |
| | Dec 30 | Clamagore returned to New London, CT. |
| 1968 | Mar 1 | Clamagore departed for extensive operations in the North Atlantic. Her efforts reculted in her 8th Battle "E". |
| | Aug 1 | Clamagore headed south toward Bermuda where she participated in SUBASWEX 4-69. After more local operations out of New London, she returned to the Virgin Islands for a Weapons System Acceptance Trial.
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| 1970 | Jan 1 | Clamagore participated in another Springboard deployment followed by a battery renewal. Another Mediterranean deployment followed the shipyard period where she operated extensively with aircraft, surface craft, and submersibles from various allied navies. |
| 1971 | Jan 1 | Clamagore operated up and down the East Coast, from Halifax, Nova Scotia to the Virgin Isalands during much of 1971. She spent the remainder of 1971 in New London, CT. in upkeep and preparation for her scheduled overhaul. |
| 1972 | Jan 1 | The overhaul was accomplished at the Philadelphia Naval Shipyard, Philadelphia, PA. |
| | Jun 1 | Clamagore completed overhaul. The rest of 1972 was devoted to a two month deployment to the Caribbean encompassing refresher training, type training and a highly successful Weapons System Acceptance Trial. |
| | Nov 1 | Clamagore completed a satisfactory Nuclear Weapons Acceptance Inspection. |
| 1973 | Jan 1 | A month of local operations preceded a restricted availability at the Portsmouth Naval Shipyard, Kittery, ME. for main battery renewal and a main engine replacement. During the availability, preparations were begun for the upcoming UNITAS XIV deployment. |
| 1975 | Jun 12 | Decommissioned. |
| | Jun 27 | Clamagore was struck from the Naval Register and now serves as a Musuem Ship at Patriot's Point, Charleston, SC.
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