The first ABA league, the American Professional Baseball League, was the only competition that didn't have any changes from the middle of the 1880s. It stayed at 16 teams split between the Colonial and Metropolitan Conferences:
The second ABA league, the Midwestern Baseball Association expanded from 10 to 14 teams in 1890: adding the Kansas City Bulls, Minneapolis Lakers, Omaha Stags, & St. Paul North Stars from the Prairie League:
The 14-team league would be a single division for 1890, but would split into an Eastern League and Western League for 1891, with the champions playing for the Lincoln Memorial Cup.
I have graphical files for both leagues uploaded to my OneDrive - both individually and a Zip folder containing everything.
APBL Graphic Files
MWBA Graphic Files
Again, if you need a Microsoft account to access the material at the links, you can sign up for one now with any e-mail address and a fake name/DoB.