File:US Navy 100409-N-3090M-330 Sailors lower the Submarine Squadron (SUBRON) 4 pennant during a change of command ceremony aboard the historic ship Nautilus.jpg - Wikimedia Commons

General Dynamics Electric Boat Holds Keel-Laying Ceremony for

Submarine Squadron 4 - Wikipedia

Category:USS Nautilus (SSN-571) - Wikimedia Commons

Uss memphis hi-res stock photography and images - Alamy

Submarine Photo Index

U.S. Navy Ships - Submarines

Submarine Photo Index

Sailfish (SS-192) of the US Navy - American Submarine of the Sargo

240316-N-UM744-1002

U.S. Navy Ships - Submarines

Change of Command Naval Submarine Base Pearl Harbor Invitation

AS & SUBRON Submarine Tenders & Submarine Squadrons Groups

File:US Navy 100409-N-3090M-322 Staff members of Submarine