Helen Azar/ George Hawkins
(1)
Helen S. Hawkins, G. Allen Greb, Barton J. Bernstein, Gertrud Weiss Szilard
(1)
Helen Sweet (EDT)/ Sue Hawkins (EDT)
(1)
Helen Watt (EDT)/ Anne Hawkins
(1)
Leo Szilard, Helen S. Hawkins, G. Allen Greb, Gertrud Weiss Szilard
(1)