Ellsworth Kalas tells about a sunswept October afternoon in 1932 when he came bounding home from school, eager to tear off school clothes and put on playground stuff. But to his great surprise, he discovered that his father was home. It was unthinkable that his father would be home at three-thirty in the afternoon. "Why are you home, Dad?" young Ellsworth asked. He remembers his father being generally slow to speak, but especially so at this moment. His mothe…