Half Broke Horses

I just finished reading Half Broke Horses on Friday, and wanted more. I had so many questions about what happened next. Why did Lily die? What happened to her children? What happened to Big Jim? Apparently Jeannette Walls writes about Rose Mary in the book Glass Castle, so maybe some of those answers are in GC. I'll borrow it from the library. Based on reviews I've read, it's not a western. Too bad because Rose Mary did love ranch life.