Hoopes also was nominated to serve on the Committee for the Preservation of the White House by United States President Jimmy Carter from 1977 to 1980. Three years after that, Hoopes took the role of Director of the Thomas Cole National Historic Site, a post that he held until retirement in 1997.
In addition to his other responsibilities, Hoopes was chosen by President Jimmy Carter to be part of the Committee for the Preservation of the White House from 1977 to 1980. Later, Hoopes became the director of the Thomas Cole National Historic Site, a role he maintained until his retirement in 1997.