James R. Derusha, vice president of operations, recently announced that John Booker has joined Marinette Marine Corporation as manager of steel trades. He came to Marinette Marine from the Key Highway Yard of Bethlehem Steel in Baltimore, Md., where he was ship superintendent.

Mr. Booker's shipbuilding experience goes back to 1967, when he started at the General Dynamics-Electric Boat Division. His experience there was in areas of planning, production control, material control, and supervision.

At Marinette Marine, Mr. Booker is responsible for the direction, coordination and management of hull construction from the initial plate processing to hull completion.