Your photo of Jack Rowe just above is actually Dave Rowe - that's a known NYPL Spalding Collection error. You can read about it here (page 13):
https://sabr.box.com/shared/static/t...lum70lefpk.pdf
So that implies that you are saying
Dave Rowe is in your photo. If so, then it's not Dubuque because Dave Rowe was not on the team.
You will not be able to establish that any of those people are in your photo. Yeah, that's just my opinion.
Having blown this photo up to 3 by 4 feet and having already written these names over it, I just don't think you will ever be rational about it. Again, just my opinion.
So - are you the same Tom from the Sports Collectors Digest article (and the above Telegraph Herald article) that "found" this photo?