William T. Moore, chairman of the board of Moore and McCormack Co., Inc., has announced the election of the following three new directors to the board: Geo. T. Scharffenberger, president and chief executive officer, City Investing Company; A. Lightfoot Walker, chairman and chief executive officer, Rheem Manufacturing Company, and William E. Stockhausen, partner in the law firm of Satterlee, Warfeild & Stephens.

In addition to the newly elected members, the present board consists of William T. Moore, chairman; Lawrence F. Fiske; Thornton Hall; Lawrence C. Marshall and Robert E. O'Brien.

Mr. Scharffenberger is chairman of the board of the Gateway National Bank, El Segundo, Calif., a director of General Development Corp., Wabash Magnetic Inc., Metro-Goldwyn-Mayer, Computer Sciences Corp., Management Science Corp., Diebold Technology Venture Fund, Property Corp., and Cayman Corp.

Mr. Walker is president and a director of Rheem International Inc., director of City Investing Company, Marine Midland Grace Trust Co., a trustee of the U.S. Council of the International Chamber of Commerce and a member of the advisory board of the Institute of World Affairs.

William E. Stockhausen is president and director of Nassau Hospital and a member of the American Bar Association and Association of the Bar of the City of New York.