This primary source comes from the Collection DDE-WHOSS: White House Office, Office of the Staff Secretary: Records of Paul T. Carroll, Andrew J. Goodpaster, L. Arthur Minnich, and Christopher H. Russell.
Full Citation: Memorandum for the Record Authored by Andrew J. Goodpaster; 6/2/1960; Intelligence Matters (15); Alphabetical Subjects, 1953 – 1961; Collection DDE-WHOSS: White House Office, Office of the Staff Secretary: Records of Paul T. Carroll, Andrew J. Goodpaster, L. Arthur Minnich, and Christopher H. Russell,; Dwight D. Eisenhower Library, Abilene, KS. [Online Version, https://docsteach.org/document/memo-u2-successor/, April 2, 2026]