B. Francis Saul II, chairman of the board of Financial General Bankshares Inc.,, has been elected by the board to serve as chief executive officer of the company to replace J. William Middendorf II, who resigned to become the U.S. representative to the Organization of American States. Jack W. Beddow, senior vice president and secretary, has been designated by the board as the chief administrative officer of the company.

Juliette C. Heintze, assistant treasurer of USAir, Ruby B. McZier, attorney for Resources Inc., and Antoinette K. Hatfield of Antoinette Hatfield Realtors have joined the board of directors of the United Bank of Washington.

Patricia L. Beam has been promoted to branch officer of the main office of First American Bank of Maryland. She will continue to serve in her current position as assistant branch manager of First American's Silver Spring office.

Robert W. Hicks has been promoted to senior vice president of the Bank of Virginia, and George A. Barrows has been transfered to the Tysons Corner office as credit officer in charge of loan administration for the bank's northern division.

Frank S. Marasco has been promoted to vice president of the United Bank of Virginia. He was formerly with the Mercantile Safe Deposit and Trust Co. of Baltimore. Robert W. Seale has been promoted to vice president from assistant vice president of the bank.

Louis E. Martin, assistant vice president (communications) of Howard University, has been elected as an advisory director of Riggs National Bank.