I've got "Daytime Nighttime Suffering" by Paul McCartney and Wings in my head now, but it really wasn't so bad.
No new park for now, but instead some admin/cleanup. I've made a folder on Google Drive, which hopefully has all the missing pieces for at least the 19th century parks:
"Ballparks Complete" folder on Google Drive
This folder has the following:
Day/Night images for the 16 parks posted in the Jazz-Age Ballparks thread that are missing them
Day/Night/Diagram images for the 8 parks in this thread that I made
Zip files for the 8 parks in this thread that I made, now including the Day/Night/Diagram images (these now have "complete" in their zip file names)
You should be able to pick and choose among those, and I think you should also be able to just download the whole shebang, though I think that might be 650 Mb altogether. I didn't include dfswan's park since he already included these images in his post.
Let me know if you have any questions or issues, and hopefully I can address them!
And happy St. Patrick's Day to all who celebrate.