Short answers, pulled from the story.
President Woodrow Wilson signed a bill into law creating the National Advisory Committee for Aeronautics on the 3rd of March 1915. The legislation passed through Congress as a rider attached to the Naval Appropriations Bill.
The initial committee consisted of twelve unpaid members with an annual budget of just five thousand dollars. Senator Benjamin R. Tillman and Representative Ernest W. Roberts introduced identical resolutions recommending this advisory body in January 1915.
Engineers from NACA solved supercharger problems for Boeing B-17 Flying Fortress bombers enabling aircraft to maintain power at altitudes exceeding fifteen thousand feet. North American Aviation chose a NACA-developed airfoil for what became the P-51 Mustang fighter which performed dramatically better than previous models.
Richard Whitcomb determined the area rule explaining transonic flow over an aircraft in 1951 at NACA Ames Research Center. All modern transonic and supersonic aircraft now use the area rule concept developed through NACA research.
Congress dissolved the National Advisory Committee for Aeronautics on the 1st of October 1958 transferring assets and personnel to newly created National Aeronautics and Space Administration. James Killian wrote a memorandum to President Dwight D. Eisenhower on the 5th of March 1958 encouraging creation of NASA based on strengthened and redesignated NACA.