The third USS Proteus (AS-19) was a in the United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

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Proteus was laid down by the Moore Shipbuilding and Dry Dock Company, Oakland, California

Oakland, California

Oakland is a major West Coast port city on San Francisco Bay in the U.S. state of California. It is the eighth-largest city in the state with a 2010 population of 390,724...

, 15 September 1941; launched 12 November 1942; sponsored by Mrs. Charles M. Cooke, Jr.

Charles M. Cooke, Jr.

Admiral Charles Maynard Cooke, Jr., USN, was a United States Navy four star admiral who served as Commander, United States Seventh Fleet from 1946 to 1947; and Commander, U.S. Naval Forces, Western Pacific from 1947 to 1948....

; and commissioned 31 January 1944, Capt. Robert W. Berry in command.
After shakedown off San Diego

San Diego, California

San Diego is the eighth-largest city in the United States and second-largest city in California. The city is located on the coast of the Pacific Ocean in Southern California, immediately adjacent to the Mexican border. The birthplace of California, San Diego is known for its mild year-round...

, she stood out of San Francisco

San Francisco, California

San Francisco , officially the City and County of San Francisco, is the financial, cultural, and transportation center of the San Francisco Bay Area, a region of 7.15 million people which includes San Jose and Oakland...

 19 March for Midway to tend submarines of Submarine Squadron 20.