found: His The theory and practice of blackmail, 1968.
found: NUCMC data from New Haven Colony Hist. Soc. Lib. for Congregation Mishkan Israel. Records, 1843-[ongoing](Daniel Ellsberg; b. 1931)
found: WWA, 1982-1983(Ellsberg, Daniel; b. 1931; writer, lecturer, former govt. official, and political activist)
found: Biography.com, 4 January 2017Daniel Ellsberg entry (Returning to the RAND Corporation later that year [1967], Ellsberg worked on a top-secret report ordered by Defense Secretary Robert McNamara entitled U.S. Decision-making in Vietnam, 1945-1968. Better known as "The Pentagon Papers," the final product was a 7,000-page, 47-volume study that Ellsberg called "evidence of a quarter century of aggression, broken treaties, deceptions, stolen elections, lies and murder.") - http://www.biography.com/people/daniel-ellsberg-17176398#government-service-and-pentagon-papers
found: New Yorker, December 19 & 26, 2016, A critic at large:page 119 ("Daniel Ellsberg, Edward Snowden, and the Modern Whistle-Blower"; In the summer of 1967, Secretary of Defense Robert McNamara commissioned a group of thirty-six scholars to write a secret history of the Vietnam War. The project took a year and a half, ran to seven thousand pages, and filled forty-seven volumes. Only a handful of copies were made, and most were kept under lock and key in and around the Beltway. One set, however, ended up at the RAND Corporation, in Santa Monica, where it was read, from start to finish, by a young analyst there named Daniel Ellsberg.)
found: Wikipedia, via WWW, July 27, 2023(Daniel Ellsberg, American political activist, economist, and United States military analyst, best known for releasing the Pentagon Papers; died June 16, 2023, in Kensington, California)