James Bishop Jr., former director of public affairs of the U.S. Energy Department and chief spokesman for Energy Secretary James R. Schlesinger, has joined the Washington staff of Burson-Marstellar as a senior consultant.

Bishop joined the White House Energy Policy and Planning staff in February 1977. When DOE was created in October 1977, he was appointed to the post of director of public affairs and deputy assistant secretary for institutional nd intergovernmental affairs.

Bishop was a writer and editor for Newsweek for 18 years and began his career as a Wall Street reporter.

Susan D. Jones has been promoted to communications director of the Riggs National Bank.

William L. Smith has been named the new general manager of the Washington Hilton. He was the general manager of the Conrad Hilton in Chicago and general manager of the Fountainbleau Hilton in Miami.

Robert S. Karmel, former member of the Securities and Exchange Commission and a partner in the firm of Roger & Wells, has been appointed to the 15-chair Legal Advisory Committee of the New York Stock Exchange. She succeeds Ray Garrett Jr., former chairman of the Securities and Exchange Commission.

Sidney G. Hawkes has been elected vice president, Washington affairs, of the Mead Corp.

Mark R. Knowles has been selected by the National Pharmaceutical Council to succeed retiring president Vernon Trygstad. Knowles has been territorial manager of American National Red Cross, director of health planning for the state of Maine and chief executive officer of the National Eye Foundation.

Adm. James B. Linder, USN, (Ret.) has joined Man-Tech International Corp. as senior consultant. He will specialize in tactical analytical programs concerning anti-air warfare and carrier air defense systems.

Richard G. Tilghman has been named executive vice president-corporate banking for United Virginia Bank. He will head UVB's newly formed corporate banking group.

The board of directors of Chesapeake & Potomac Telephone Co. announced the appointment of Oliver T. Carr and James G. Banks to the board.