Complex sentence: In depicting the inner life and emotions of these waifs, Alger hoped to stimulate widespread sympathy for the vagrants, and to set wholeseome fictional examples of successful people for these waifs to emulate.
Split into simpler sentences: In depicting the inner life and emotions of these waifs, Alger hoped to stimulate widespread sympathy for the vagrants. He also hoped to set wholeseome examples of successful fictional characters for these waifs to emulate.