Bert's father, stepmother, stepsister and stepgrandmother were forced to the attic of their home the evening of June 9 because of rising floor waters. Bert's father was the only survivor.
Rapid City Public Library
June 8, 2012
Rapid City Public Library, “Bert Corwin,” Flood of 1972, accessed March 26, 2019, https://1972flood.omeka.net/items/show/227.