Complex sentence: She also wrote several popular novels, most notably "The Valley of Decision", a which traces the Scott family, prototypical owners of an iron works in Pittsburgh, from 1873 to the events of Pearl Harbor.
Split into simpler sentences: She also wrote several popular novels, most notably "The Valley of Decision". It is a which traces the Scott family, prototypical owners of an iron works in Pittsburgh, from 1873 to the events of Pearl Harbor.