Lloyd Elliott, who served as president of George Washington University for more than two decades until his retirement in 1988, died Tuesday, according to university officials. He was 94.

He died at George Washington University Hospital, a university spokeswoman said.

Elliott played a key role in transforming George Washington from a commuter school into a selective residential university, President Steven Knapp wrote in a statement on the school’s Web site.

During Elliott’s tenure, the university’s endowment swelled from $8 million to more than $200 million.

The school drove a construction boom in its Foggy Bottom neighborhood, building three new libraries, a gymnasium, medical and law school buildings and a student center. The development helped transform the area of modest row houses and apartment buildings into a modern, urban campus.

A native of West Virginia, Elliott worked as a schoolteacher in that state’s coal country before serving in the Navy during World War II. He used the GI Bill to pay for a doctorate in educational administration from the University of Colorado.

After retiring from George Washington, Elliott became president of the National Geographic Society’s education foundation.