Complex sentence: Certain members of the defunct "Norfolk Federation of Women Teachers" have served here as teachers and were willing to volunteer in an attempt to teach these "trainable retarded" children and allow them to graduate from elementary school.
Split into simpler sentences: Certain members of the defunct "Norfolk Federation of Women Teachers" have served here as teachers. They were willing to volunteer in an attempt to teach these "trainable retarded" children and allow them to graduate from elementary school.