High Quality Content by WIKIPEDIA articles! USS K-7 (SS-38) was an K-class submarine, of the United States Navy. Her keel was laid down by the Union Iron Works, on San Francisco, California, under a subcontract from Electric Boat Company of Groton, Connecticut. She was launched on 20 June 1914 sponsored by Mrs. Katie-Bel McGregor, daughter of the President of Union Iron Works, and commissioned at Mare Island on 1 December with Lieutenant J. V. Ogan in command.

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