The Bilby Tower building segment of this CD is with NGS Field Party G-23. The Chief of Party
(not shown) was James "Phil" Cook. The tower building surveying techs are: Building
Foreman - AI Sulfridge. Builders: Joe Lindsay, Gene Thacker, Max Hetrick, Barry Myers and Builder/Geodesist - Dave Lehman.
For the record there were enigmatic hand gestures depicted several times. This was/is an
Indian gesture which emanated from previous G-23 employees who were members of the
Iroquois Nation. It is not for me to speculate as to the nature & intent of this gesture.