Steve, it may be an indication that there were 6+ of each player stacked based on the ratio we see of double names vs two names. We may learn as you mentioned that some players had 4 stacked and others 6 or more, maybe multiple columns of the same player on one sheet. Fun stuff
If we could confirm the print press or sheet size it would be a good base to start with.
Jantz or Erick, is there a new Rossman or other example I need to add to list?