Letter from Paul Ngô-Trọng-Hiếu to Dennis J. Duncanson. Ngô-Trọng-Hiếu talks about the political plight Vietnam is currently experiencing and commenting on the political and military actors involved.

Letter from Ong Von to Dennis J. Duncanson. Ong Von open his letter by offering his congratulation to Duncanson for his book and informs Duncanson that many copies have already been bought in Springfield, Virginia, while his library already has a copy. Ong Von goes on to inform Duncanson that he had seen McAlister's review of Duncanson's book in The New York Times Review, which he found inadequate and sent a letter to the New York Times book review to defend Duncanson.

Letter from Nguyen Van Anh to Dennis J. Duncanson. Nguyen Van Anh provides Ducanson with notes which detail the characteristics of the Dcl (Can Lao) party, such as its organisational structure, statutes, internal regulations and manifesto. With the letter are documents describing the Initial Party's flag and organisation.

Letter from Nguyen Van Anh to Dennis J. Duncanson which detail aspects of the Can Lao party – from its fundamental principles, status, rules of procedure, manifesto, constitution, and notes regarding the translation of Vietnamese words into English.

Letter from Nguyen Van Anh to Dennis J. Duncanson. Nguyen provides Duncanson with further information regarding the Can Lao party, as well as several pages worth of preliminary notes in response to various points of Duncanson's previous questionnaire.

Letter from Nguyen Van Anh to Dennis J. Duncanson. Phan Van Tao recounts details surrounding the Dang Can Lao party. Phan Van Tao suggests points of interest concerning the party's formation, throughout the 1950s and 60s, and right up to the 1970s during the Vietnam conflicts.

Letter from Nguyến Thế Anh to Dennis J. Duncanson. Nguyến writes that he and his family have been evacuated to America in the last days of April. Nguyến has applied for a research grant from the Ford Fellowship, which if successful Nguyến shall bring his family to France while he works in the archives in Paris, Aix en Provence and London.

Letter from M. F. Serpell to Dennis J. Duncanson in response to Duncanson's letter on 05 June 1971. Serpell writes to send Duncanson a copy of the report on the second seminar on Village Defence and Development, the prospectus for the third seminar and proposals for the conduct of the "clearing-house" which the second seminar proposed and which SEATO has approved. Serpell ends the correspondence with a request for Duncanson to offer comments on the proceedings and plans. There is a second, unsigned, copy of this correspondence. Attached document is a Prospectus for the third seminar on village defence and Development in March, 1972 (8 pages).

Letter from Keith M. Nightingale to Dennis J. Duncanson. Nightingale, a Captain in the Infantry who served as an advisor to a Vietnamese Ranger Battalion in the Long Kanh, Bien Hoa, Bing Tuy Phuoc Tuy Province areas, now currently an instructor in the Military Science Department, thanks Duncanson for his book, Government and Revolution in Vietnam, which Nightingale describes as a source of information and reference material. Nightingale offers his account of the events surrounding General Nguyen Chi Tanh - as mentioned by Duncanson on page 372 of his book- who Nightingale confirms as having perished in a battle on 28 June 1967. It is unclear from this letter whether it was written in May or June 1969.

A letter from John T. McAlister Jr. to Dennis J. Duncanson with an enclosed copy of his review in The New York Times Book Review of Duncanson's book 'Government and Revolution in Vietnam'. McAlister apologies to Duncanson for not writing sooner and explains that his involvement in Senator Robert Kennedy's campaign did not provide any free time to correspond.

McAlister writes that he has enclosed several items for Duncanson's attention: the first item is a piece that he wrote on mountain minorities which Duncanson had enquired about, the second is a copy of McAlister's testimony before Senator Fulbright's Foreign Relations Committee of the U.S. Senate and the third is McAlister's book review of Duncanson's 'Government and Revolution in Vietnam'. McAlister writes that although their opinions of Vietnam differ, it is of a scholarly nature and that Duncanson may, in turn, have the chance to review his own forthcoming book.