Simon Lake
La Verne W. Spring
Frederick Law Olmsted
James Silver
E. S. Keene
Charles B. Hayward
Joseph Turney Wood
S. B. Reed
Ralph P. Dillon et al.
Henry A. Gardner
B. C. Batcheller
William J. Claxton
American Railway Signal Association
Joseph Nasmith
Farnham Bishop
James H. Stephenson
George G. André
George E. Waring
J. C. F. Johnson
Richard Bitmead
Harold E. Babbitt
David Pollock
Herbert Hoover
Sidney Morgan
