Gordon Bennnett Cup in ballooning 1921. American team. Left to right: Willard B. Sieberling, Pilot W. T. Van Orman, Pilot Bernard Von Hoffman, Pilot Ralph H. Upson, 
C. G. Andrews and J. S. McKibben.
Unknown author<span style="display: none;">Unknown author</span>
1921-09-04
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