Marynie Hall Boston gave us this information:

John Dalton's brother called to say John passed away last night [March 2, 2014] of esophageal cancer.  Funeral arrangements are pending, but he lived out in the Irish Hills area.  I'm sorry, I know nothing about his family, except they were waiting to hear from his son.  He had an older brother, Jamie ('61) and a younger brother Thomas ('65).