David Hemphill ... [et al.] David Simpson ... [et al.] David Harley ... [et al.] David Millar ... [et al.] David J. Rachman ... [et al.] David B. Magleby ... [et al.] David Marsden ... [et al.] David J. Schneider ... [et al.] David L. Bender ... [et al.] David M. Gordon ... [et al.]