I live in Hanna, but I’ve only lived here a little over a year and I’m not really acknowledged to the town’s history, nor it’s mining history. I’ve heard a few stories from some locals, but not enough to be beneficial to you. However, I’ve been to the Hanna cemetery, and do know many “unknown miners” have been laid to rest there, and other known/identified ones whom, all, lost their lives in the explosion you’re referring to. Quite a special/intricate memorial has been erected at this cemetery for all the miners who lost their lives during that horrific accident.
Here’s a website that might be beneficial to you, also, (good luck!):
http://www.interment.net/data/us/wy/...anna/hanna.htm