2nd page left is Jay Clark; the Gold Medal 1920 Antwerp Olympic Team - F. W. McNeir, Frank S. Wright, Frank Troeh, H. R. Bonser, Mark Arie, Jay Clark, Jr. (Capt). From "Trapshooting: The Patriotic Sport" by D. H. Eaton
https://books.google.com/books?id=6aQvAQAAIAAJ&pg=PA159

2 shots were allowed at the Olympic Games and I don't know what gun Clark used but it might be a pump



He and his Ithaca