Dating the ticket based on the other items on the page might be tough. Given that there are only a few tickets, and only one from each event, could be that the owner didn't go to that many events. Perhaps he went to a baseball gave every year or so, and went to the KC Blues game sometime between 1914 and when the final items were added to the book, but put the ticket on the page with the 1914 Fed League one, because they were both baseball related. Or, of course, it could be somewhere between 1910-13.
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