Robert C. Fort has been named manager of public relations for Southern Railway. He will succeed Charles O. Morgret, who retired after 42 years in the railroad industry.

Fort has been with Southern Railway as a public relations special representative since 1977. Earlier he was press and legislative assistant to Rep. Jack Brinkley (D-Ga.), and worked for The Atlanta Constitution, The Columbus Enquirer and The Athens Banner-Herald.

Morgret was employed by the Association of American Railroads from 1939 to 1963, when he went to work for Southern.

The American Movers Conference recently presented its 1981 Industry Service Awards at the Rayburn House Office Building. Sam Gilliam, an owner-operator under contract with the United States Storage Co. in Rockville, was one of those recognized for exceptional acts of customer and community service. Among his customers has been President Reagan, whose move from California was handled by Gilliam.

Mathias J. DeVito, president and chief executive officer of The Rouse Co. of Columbia, has been elected to the board of directors of USAir. In addition to his association with Rouse Co. subsidiaries, DeVito is a member of the board of directors of the First National Bank of Maryland, the Council of Business Advisors for Baltimore City and the Greater Baltimore Committee.

USAir has also named Robert A. Nance director of advertising and sales promotion for its Washington corporate headquarters.

Amtrak has announced that Thomas P. Hackney will become its chief operating officer in addition to performing his present responsibilities as group vice president. Eugene Eden will assume the duties of vice president of passenger services.

Pacific Intermountain Express Co. has named Hunter Minnix manager of its Atlantic region. He will be in charge of sales and terminal operations in Washington, D.C., Virginia, Delaware, Pennsylvania, New York and Ohio.