As I've been working on the Roosevelt papers I have started to acquire a number of useful resources aside from the ones listed on the Campaign Page. Chief among these is my own database of names and references (now up to 215!) but also the pages below. If anyone else has items to add to this collection of references, that would be great as well.
Rough Rider List:
https://www.spanamwar.com/rrroster.htm
Tennis Cabinet: