It is indeed John Cobb, as Allan L suggested but, even given his chance, refused to confirm on the basis that he had never seen a picture of him without a tie. Well, there is always a first time. We do recognize here the stubbornness of youth.
So , who's got the point? Shamrock, logically?
The second question is what (the tie issue excepted) seems weird in this picture?
Another point at stake.