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Joe_G.Cool thread, sorry I missed it until all the questions were answered. As Jay and others pointed out, your player list is complete and of varying difficulty.
What I find strange with the Omaha team is the fact that none of the 1888 Omaha poses are found in 1889 as Omaha cards. Two players, Jimmy Cooney & John Messitt are found in both years with Omaha but their 1888 poses were not re-issued in 1889. Instead different new poses appear in 1889. As has been shared, the ~half of the poses that fall into the 1888 catagory are not easy, some extremely difficult. The 1888 cards are all of the Fb style (Cartophilic nomenclature) just like the Maroons and other cards I like to collect 
Omaha, an interesting Old Judge team to collect, from unknowns to HOFer Nichols, from easy to near impossible.
Best Regards,
Joe Gonsowski