Catherine Geneva Sharp has joined the Hechinger Co. as director of personnel. Formerly with Sky-Chef, a subsidiary of American Airlines, Sharp received her Jurist Doctorate from the Howard University School of Law in 1976. She is a member of the National Bar Association, the American Bar Association and the Washington Bar Association. She also has a bachelor of arts degree in sociology from Howard.

Louis J. Mulkern has been named a vice chairman and a director of American Security Bank. John E. Sumter also is a vice chairman and he remains in that post. Mulkern joined American Security in 1978 as executive vice president.

Mrs. Hannelor M. Hylton has been elected executive vice president and chief administrative officer of Pubco Corp. She joined Pubco in 1963 and served most recently as vice president and secretary.

Perpetual Federal Savings and Loan Association has promoted Ross C. Towne to senior vice president for financial administration and treasurer and Mrs. E. Lee Beard to vice president and controller. James F. Russell II was named vice president -- mortgage loan division.

W. Bell & Co. Inc. has appointed four vice presidents. They are: Larry McPherson, vice president corporate systems; Warren Lawhon, vice president advertising and catalogue production; Desmond J. Karmolinski, vice president merchandising; and Martin Pfeifer, vice president finance and treasurer.

John J. Ireland has been named vice president of Arlington Mortgage Co.

Cornelius A. Dolby has been appointed vice president -- commercial division for Long & Foster Realtors.

Giant Food Inc. has appointed Albert J. Lechert Jr. as vice president for construction operations and planning.

Dennis Richmond, general manager of Koons Leasing in Falls Church, has been elected to the board of directors of the Car, Auto, Truck, Rental and Leasing Association.

UNC Resources appointed John V. Okulski vice president for accounting and reporting and Peter T. Garahan treasurer. Donald E. Snelling was named vice president and controller of United Nuclear Corp.

Perpetual Federal Avings and Loan Association announced the promotions of Ross C. Towne to senior vice president for financial administration and treasurer and Mrs. E. Lee Beard to vice president and controller. James F. Russell II was appointed vice president for the mortgage loan division.

Louis Priebe, vice president of Daniel J. Edelman Associates, is the new president of the National Capital chapter of the Public Relations Society of America.

Walter W. Wurfel has been appointed vice president for corporate communications for Gannett Co. Inc.

Willard Hansen has been named vice president and general manager of Home Service Insurance Agency Inc.

James E. Smith has been named president of Charls E. Walker Associates Inc.

K. Thomas Kemp has been elected vice president of Government Employees Insurance Co.

Jack Wayman has been appointed senior vice president of the Electronic Industries Association's consumer electronics group.

Theodore R. Hagans Jr., president of the Fort Lincoln New Town Corp., has been re-elected as president of the Washington Convention and Visitors Association.

Wylie D. Powell, president of Standard Electric Co. Inc. of Kensington, has been elected president of the D.C. Metropolitan Subcontractors Association.

Mark V. Rosenker has been named director of public relations for the Electronics Industries Association. He was previously director of public relations for the Association communications division and will continue in that capacity.

Trans-Dyn Corp., a subsidiary of Dynalectron Corp., announced the appointment of Cecil H. Murphee as vice president for operations and Douglas F. Raymond as vice president for finance and administration.

William A. Beltz has been elected president and editor in chief of The Bureau of National Affairs Inc.

Dr. T. Peter Ruane has been named chief executive officer of the National Furniture Warehousemen's Association.

W. Dean Singleton has been elected executive vice president of Allbritton Communications Co.

Martin L. Schnider, president of Northern Virginia Savings and Loan Association, has been elected to the board of directors of the National Savings and Loan League.

Robert H. Appleby has been elected chairman of the board and executive committee of Peoples Security Bank of Maryland. Marlin K. Husted was elected vice chairman.

Jack Rowzie, director of public relations for MCD Holdings Inc., has been elected president of the Prince George's County Public Relations Association.