Amazingly, this book is still in print from 2006--contains a lengthy chapter on Pitts and an appendix section from his cousin that reveals new information about him and his family

https://www.amazon.com/Outlaw-Ballplayers-Interviews-Profiles-Independent/dp/0786426144/ref=sr_1_1?crid=2J6A6VQCCNRYY&dib=eyJ2IjoiMSJ9.PmdHsxP4dLN_GYGE6QSdzw.-dpUpORhxWuZsJp7XCtbajLxBL2RXzOfCIEylm8S7IA&dib_tag=se&keywords=outlaw+ballplayers&qid=1768651949&s=books&sprefix=outlaw+ballplahers%2Cstripbooks%2C145&sr=1-1