Only answer if you really truly have read the book "Armageddon Summer" by Jane Yolen & Bruce Coville?

Okay, so I recently had to read "Armageddon Summer" by Jane Yolen and Bruce Coville, and I have to make a gravestone for one of the characters that died within the book. The character I chose was Reverend Beelson. The question I have is, "Does anyone know when he was born, or how old he approximately was when he died?"