From the description of Telephone Interview with Robert Jastrow, typed notes, 1971 Oct 29. (Jet Propulsion Laboratory Library and Archives). WorldCat record id: 733099278From the description of Desire to Beat the Russians in Space : typed notes of telephone interview with Herbert York, ARPA, 1971 Dec 17. (Jet Propulsion Laboratory Library and Archives). WorldCat record id: 733099289From the description of ARPA Decision to Proceed with U.S. Lunar Program : typed notes of telephone interview with Rear Admiral John E. Clark, USN (Ret.), 1971 Nov 1. (Jet Propulsion Laboratory Library and Archives). WorldCat record id: 733099287From the description of Changes in NASA Organizations and Managers during 1959 : typed notes of telephone interview with G. Schilling, 1971 Dec 6. (Jet Propulsion Laboratory Library and Archives). WorldCat record id: 733099292From the description of NASA / JPL Relationship : interview with Robert C. Seamans, NASA Deputy Administrator re: Oct 1972. (Jet Propulsion Laboratory Library and Archives). WorldCat record id: 733099424
Hall was JPL Historian.
From the description of Oral Interview with Oran Nicks re: Project Ranger* Aug 1968. (Jet Propulsion Laboratory Library and Archives). WorldCat record id: 733096247