This picture labeled "Ad Wolgast, The Flying Dutchman" was found in the Denver Post, April 27, 1916 with the following caption:

     "Here is Ad Wolgast equipped in the training quarters of the National Athletic Club yesterday afternoon. Ad's fine condition shows in his rapid action while slapping his sparring partners around the place. Wolgast and Flynn will go thru light work today for preparation for their battle tomorrow night at Kanner's Club. Gene Fowler of The Post sports department will referee the bout."