During World War II, Copeland was one of the founding members of the OSS under William "Wild Bill" Donovan, and remained with the office as it was transformed into the Central Intelligence Agency.
During World War II, Copeland was one of the founding members of the OSS under William "Wild Bill" Donovan, serving in London, where he became a lifelong Anglophile. He remained with the office as it was transformed into the Central Intelligence Agency.