The Bath School Bombing took place on May 18, 1927. According to Grant Parker's book "Mayday", Katherine Onalee Foote was one of 38 children to die in the disaster.
The mad bomber was Andrew Kehoe, a school board member who was known as a handyman who volunteered time at the school.That was how he obtained access to the building to plant his bomb. If he had done a better job of wiring the fuses, it's unlikely any of the children would have survived.Much of the dynamite didn't explode.Andrew also murdered his wife, set his farm buildings on fire, and committed suicide by blowing himself up.
The Bath School Museum, PO Box 28, Bath, MI 48808, used to sell books about the disaster.I'm not sure if they are still available.