Complex sentence: The name Walt Bannerman is a combination of the names George Bannerman and Walt Hazlett; in the novel, George Bannerman was the sheriff, and Walt Hazlett was the man Sarah married.
Split into simpler sentences: The name Walt Bannerman is a combination of the names George Bannerman and Walt Hazlett. In the novel, George Bannerman was the sheriff, and Walt Hazlett was the man Sarah married.