Robert E. Brueckmann

H. L. Goodwin

H. L. Goodwin worked for the Roane-Anderson Company.

Alfred H. Zeltmann

Alfred “Al” Zeltmann was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.

Orland J. Koenig

N. T. Pef

Pef worked for Stone and Webster Engineering Corporation.