Johanna Balzer and Willis Cressman

Willis Cressman, 97, talks with his niece Johanna Balzer about surviving the 1927 Bath School disaster in Bath Township, Michigan, in which a local farm owner planted a bomb at his school. Thirty-eight children and six adults died in the explosion, and about 60 others were injured.

Originally aired April 17, 2009, on NPR’s Morning Edition.