Complex sentence: Ruffin was one of the charter members of NAACP and, along with other women who had belonged to the New Era Club, she co-founded the League of Women for Community Service which still exists today.
Split into simpler sentences: Ruffin was one of the charter members of NAACP. Along with other women who had belonged to the New Era Club, she co-founded the League of Women for Community Service, which still exists today.