The Mitre Corp. of McLean and Bedford, Mass., has named Dr. Gordon J. F. MacDonald chief scientist. MacDonald will be based in McLean and will be involved in the company's technology program.

Before becoming chief scientist MacDonald served as a distinguished visiting scholar at Mitre and was a member of Mitre's board of trustees. From 1972 to 1977, when he joined Mitre, MacDonald was a professor and director of the environmental studies program at Dartmouth College. He also has taught at M.I.T. and at the University of California.

MacDonald received his A.B., A.M., and Ph.D. from Harvard. He has published several books and serves on the boards of many professional and scientific societies.

David Eisenberg and Jerry Wilson have been named corporate vice presidents by the board of directors of Peoples Drug Stores. Eisenberg will take over the marketing division, and Wilson will be in charge of security.

Eisenberg, who has 27 years of service with the company, also was named chief marketing officer of Peoples. Wilson, former District police chief, previously worked for the Law Enforcement Assistance Administration and has written two books on police matters.

Julian Scheer was elected to the board of directors of Eastern Airlines. Scheer was formerly a partner in the Washington consulting firm of Sullivan, Murray & Scheer.

Stephen L. Oseroff has been promoted to director of real estate for Giant Food Inc. and to vice president of GFS Realty, a wholly owned subsidiary of Giant.

Douglas V. Ope has been elected secretary of Washington Gas Light Co. He succeeds C. Bruce Dickinson, who is retiring after 40 years of work with Washington Gas.

Claude A. Rogers has been promoted to vice president of finance of the Atlas Machine and Iron Works Inc. of Gainesville, Va., and Pottstown, pa.

Michael L. Cahhal has been named executive chef for the Sheraton-Park Hotel. Cahhal will be responsible for opening four restaurants and supervising a culinary staff of about 80 for the new Sheraton Washington scheduled to open this fall.

Robert P. Pincus has been elected senior vice president and Susan J. Schumacher has been elected vice president of the D.C. National Bank. Pincus is also manager of the Commercial Banking Division, and Schumacher is a member of the National Association of Bank Women.

Seymour Field recently was appointed vice president and controller of Country Legend Inc., a Northern Virginia based fashion clothing retail chain.

The Federal Home Loan Bank of San Francisco announced the promotion of Robert H. Hartline to senior vice president with responsibility for the supervision and industry development departments. Hartline is a graduate of George Washington University and worked for a time at American Security and Trust Co. in the District.

ManTech of New Jersey Corp., with headquarters in Rockville, announced the appointments of Sheridan Caceres as corporate director of marketing and Bruce I. Meader as director of publications.

John T. Cox, director of public relations at Suburban Hospital in Bethesda, has been appointed to the newly created position of assistant to the president of the board of trustees. Cox has also worked for the Fairfax Hospital Association, the U.S. Naval Academy, and the College of William and Mary. Ann Evans has been named Cox's successor as director of public relations.

Nancy Harvey Steorts has been named consumer spokesman for the 100th birthday of Ivory Soap by Procter & Gamble.

Michael Lee August has been named an account executive of Weitzman, Dym & Associates.

Herbert A. Palm has been named commercial leasing agent for Shannon & Luchs. Also appointed to the position of office leasing specialist was Howard C. Brown III.

Peter V. Savage has been named corporate secretary of the Ryland Group Inc. Savage will oversee corporate planning and shareholder relations for the Columbia based firm.