USS Oglala in the Atlantic Ocean, 1920

Photograph. Starboard side view of the USS Oglala (CM-4) a bi-plane and small boats are on either side of the ship.

USS Oklahoma (BB-37) passing through a lock in the Panama Canal

Photograph, The USS Oklahoma (BB-37) passing through a lock in the Panama Canal; sailors are on the ship's deck.

USS Oklahoma (BB-37) sunk during attack on Pearl Harbor on 7 December 1941

USS Oklahoma (BB-37) sunk in water, 14 inch guns in foreground. Official caption: "USS Oklahoma. US Navy Photo 100-13." From U.S.

USS Parrott in the Pacific Ocean

Photograph, aerial. Starboard side of the USS Parrott (DD-218) underway.

USS Patterson in the Pacific Ocean

Photograph. Starboard side view of the USS Patterson (DD-392) underway; United States Navy sailors are standing on the deck of the ship.

USS Paul Hamilton in the Pacific Ocean

Photograph. Port side view of the USS Paul Hamilton (DD-590).

USS PC-590

USS PC-799, San Francisco

Photograph. A color-tinted photograph of the USS PC-799. Personal caption on photo reverse: "PC 799.

USS Pennsylvania (BB-38) undergoing repairs in open water off the coast of Okinawa, 1945

Photograph. USS Pennsylvania (BB-38) undergoing repairs in open water; a crane on a barge is on the left; water is being pumped from the ship.

USS Pennsylvania in the Pacific Ocean

Photograph. Port side view of the USS Pennsylvania (BB-38).

USS Pensacola in the Pacific Ocean

Photograph. Port side view of the USS Pensacola (CA-24).

USS Philadelphia in the Pacific Ocean

Photograph. Port side view of the USS Philadelphia (CL-41); two other cruisers are in the background.