Approximately three and a half linear feet of slides, correspondence, scrapbooks, orders, military publications, photographs, speeches, presentations, diplomas and certificates, and narratives relating to the career of Richard T. Knowles from his time in WWII to his retirement in 1974, including WWII, Korea, Vietnam, and his years in Korea after the Vietnam War. Much of the material pertains to the creation and implementation of the air assault concept which came to fruition in the early years of the Vietnam War. There is also a substantial amount of materials related to Knowles' time in Vietnam between 1965 and 1967, where he served as Assistant Division Commander for the 1st Cavalry Division, Chief of Staff for the II Field Force Vietnam (FFV), Brigade Commander for the 196th Light Infantry Brigade, and Commanding General of Task Force Oregon.
Materials of note include briefing and presentation notes, correspondence, journal article drafts, military publications, and directives related to the development of air assault doctrine between 1963 and 1965. Also of interest are scrapbooks, slides, reports, correspondence, directives, and news clippings related to General Knowles' time in Vietnam, including combat reports and correspondence with General Harold Moore regarding Knowles' role in the Battle of Ia Drang. The scrapbook titled "Task Force Oregon" includes photographs, fact sheets, and news releases from Knowles' time in command of Task Force Oregon in 1967. Slides and photographs include depictions of American servicemen in action, aerial photos of terrain, and photographs of Knowles with various distinguished visitors including Vice President Hubert Humphrey, Secretary of Defense Robert McNamara and General William Westmoreland. Correspondence covers a wide variety of topics, and includes the folder "Correspondence - General Knowles - July 1969-Dec," which consists of correspondence from General Knowles' time as the Army's Deputy Chief of Staff for Operations. It includes letters from concerned citizens about the Vietnam War that were sent to President Nixon or Congress. These letters were forwarded to General Knowles for response, and his replies are included as well.