The one chapter that describes the floodwaters and the vanishing of a family member is done by following the mother of the clan, and seeing that she survives AND saves another young innocent life along the way.
Yes, facts and figures are put into the mouths of visiting neighbors, who fill in the historical perspective of Why the dam broke and what was or wasn't done to prevent the tragedy, but the reader is not hit over the head with it. These are woven into the story as the rain clouds gather.
Of seven chapters, at least the first four lead up to the break, throwing in pictures of rural life, chores, age or innocence vs. working age, male/female gender roles, and the presence of death and illness in the family before the flood occurs.The last three deal with the aftermath, the psychological impact of the massive loss, and the hope of a new life joining the family. The book ends on a positive, hopeful note, by having the main character resolve her unhappy feelings and welcome the new family member. A second member is depressed with having to help with the massive cleanup, and he delivers the depressing numbers and tale of the fires and drownings. So, the death is off camera, but it's impact is felt by the brother...NOT the main character, Christina.
As an introductory history book, it is right for begining readers, but if you are familiar with the story or looking for a scholarly documentation, this is not the one for you..instead, try The Johnstown Flood...part of the reforms and improvements series by Gallagher & company.
But, for the price, and what it is, this book services its YOUNG audience well.