In 1977, Rolling Stone alleged that one of the most important journalists under the control of Operation Mockingbird was Joseph Alsop, whose articles appeared in over 300 different newspapers. Other journalists alleged by Rolling Stone Magazine to have been willing to promote the views of the CIA included Stewart Alsop (New York Herald Tribune), Ben Bradlee (Newsweek), James Reston (New York Times), Charles Douglas Jackson (Time Magazine), Walter Pincus (Washington Post), William C. Baggs (The Miami News), Herb Gold (The Miami News) and Charles Bartlett (Chattanooga Times). According to Nina Burleigh (A Very Private Woman), these journalists sometimes wrote articles that were commissioned by Frank Wisner. The CIA also provided them with classified information to help them with their work.
After 1953, the network was overseen by Allen W. Dulles, director of the Central Intelligence Agency. By this time Operation Mockingbird had a major influence over 25 newspapers and wire agencies. These organizations were run by people with well-known right-wing views such as William Paley (CBS), Henry Luce (Time and Life Magazine), Arthur Hays Sulzberger (New York Times), Alfred Friendly (managing editor of the Washington Post), Jerry O’Leary (Washington Star), Hal Hendrix (Miami News), Barry Bingham, Sr., (Louisville Courier-Journal), James Copley (Copley News Services) and Joseph Harrison (Christian Science Monitor).