. . . . . . . "Nomination hearings before the United States Senate Committee on Aeronautical and Space Sciences, Eighty-Seventh Congress, first session, on Feb. 2, 1961"@en . . . . . "Nomination hearings before the United States Senate Committee on Aeronautical and Space Sciences, Eighty-Seventh Congress, first session, on Mar. 23, 1961"@en . . . . . .