Mellon Bank Corp., Pittsburgh, has elected Dwight L. Allison Jr. to its board of directors.
Mr. Allison, a private investor and former chairman of Boston Co., is also a director of that money management unit, which Mellon acquired in 1993. Mr. Allison began his semi-retirement in 1983, after two years as chairman of Boston Co. He was vice chairman from 1983 to 1986. He had been president and chief executive from 1977 to 1981.