Here is a video of clips from game 1 of the 1917 WS at Comiskey park and in the first few seconds you can see a big sign outside the stadium indicating what tickets are for that gate. Reasonable to assume something like that was done in 1919 as well. Dont know if it helps but saw it and thought of your project
https://www.youtube.com/watch?v=AGF_QqK38KE