An American Exodus: A Record of Human ErosionFirst edition of An American Exodus: A Record of Human Erosion by Dorothea Lange and Paul Walker. First impression. Medium format softback in fine condition. About In 1938, Dorothea Lange and her husband Paul Taylor began sorting through the stacks of photographs she had made documenting migrant farmworkers and homeless drought refugees. Their goal was to create a book that would reveal the human dimension of the crisis to the American people and,