[PAR] [TLE] John L. Porter [SEP] John Luke Porter (1813 – December 14, 1893), whose father was a shipwright at Portsmouth, Virginia, was born in 1813.  He became a United States Navy civilian employee during the 1840s and a Naval Constructor in 1859.  After resigning from the U.S. Navy in May 1861, he began working for the Confederate States Navy at the Gosport (Norfolk) Navy Yard, at Portsmouth.  He played an important role in the conversion of the scuttled and burned steam frigate USS "Merrimack" to an ironclad, which became CSS "Virginia" when commissioned in February 1862. [PAR] [TLE] Norfolk Naval Shipyard [SEP] The Norfolk Naval Shipyard, often called the Norfolk Navy Yard and abbreviated as NNSY, is a U.S. Navy facility in Portsmouth, Virginia, for building, remodeling, and repairing the Navy's ships.  It is the oldest and largest industrial facility that belongs to the U.S. Navy as well as the most multifaceted.  Located on the Elizabeth River, the yard is just a short distance upriver from its mouth at Hampton Roads.
[PAR] [TLE] John L. Porter [ SEP ] John Luke Porter ( 1813 – December 14 , 1893 ) , whose father was a shipwright at Portsmouth , Virginia , was born in 1813 . He became a United States Navy civilian employee during the 1840s and a Naval Constructor in 1859 . After resigning from the U.S. Navy in May 1861 , he began working for the Confederate States Navy at the Gosport ( Norfolk ) Navy Yard , at Portsmouth . He played an important role in the conversion of the scuttled and burned steam frigate USS " Merrimack " to an ironclad , which became CSS " Virginia " when commissioned in February 1862 . [PAR] [TLE] Norfolk Naval Shipyard [ SEP ] The Norfolk Naval Shipyard , often called the Norfolk Navy Yard and abbreviated as NNSY , is a U.S. Navy facility in Portsmouth , Virginia , for building , remodeling , and repairing the Navy 's ships . It is the oldest and largest industrial facility that belongs to the U.S. Navy as well as the most multifaceted . Located on the Elizabeth River , the yard is just a short distance upriver from its mouth at Hampton Roads .
John Luke Porter began working for the Confederate States Navy at the oldest and largest industrial facility that belongs to who?
John Luke Porter began working for the Confederate States Navy at the oldest and largest industrial facility that belongs to who ?
the U.S. Navy
the U.S. Navy