Lyndon Johnson actually said...
Captain of the Port...means the officer of the Coast Guard, under the command of a District Commander, so designated by the Commandant for the purpose of giving immediate direction to Coast Guard law enforcement activities within his assigned area.
Context
Executive Order 11249—Amending Regulations Relating to the Safeguarding of Vessels, Harbors, Ports, and Waterfront...
10/09/1965