Scott, that is much more in line with other Burke-Koretke images I was seeing. Lots of western-themed photos, and a few large-group shots of different organizations, but not so many baseball-related.
The Yankee one that I mentioned is not nearly as elaborate as the Cubs from the same year, and yet went for 4x as much in the same auction:
http://www.legendaryauctions.com/Lot...entoryid=17818
It's hard to tell from the small image for the Cubs montage, but I would hazard a guess that Burke-Koretke created the montage, but not necessarily took all the individual standing photos themselves that were used to create the piece. If I had a larger scan of the composite, I could maybe match up some of the individual standing photos to known George Burke images.
Then again, given that nobody could remember Frances Burke's full name in 1929 to call him in to take some photos of the Cubs (which is how George Burke got his break and became the Cubs' official photographer for the next 2 decades), who knows what kind of confusion could have resulted in those 2 composites being created? Either way, it seems the confusion still persists now 80 years later!