Nominations, hearings, 87th Congress, 1st session, on nominations of Harold Brown, to be Director of Defense Research and Engineering, Joseph S. Imirie, to be Assistant Secretary of Air Force, Paul R. Ignatius, to be Assistant Secretary of Army, Edward A. McDermott, to be Deputy Director, Office of Civil and Defense Mobilization, Brockway McMillan, to be Assistant Secretary of Air Force, John R. Rubel, to be Assistant Secretary of Defense, Apr. 7 and May 18, 1961.