Scope and Content From the Collection: The Hartley A. Soule Papers, 1945-1972, n.d., include notes, memoranda, calculations, and drawings on the High-Speed Flight Research Station (1950-1954); Research Airplane Program (1953-1957); X-15 program (1958-1962); Dyna Soar program (1957-1962); Projects Mercury and Gemini (1961-1962); and history of the high-speed aircraft program (1963-1967). Materials are arranged in two series. Series I: Papers, 1945-1972, n.d., includes notes, correspondence, memos, subject files, and...