Complex sentence: Jeannette Rankin, a committed Pacifist and the first woman elected to Congress (first elected in 1916), was the only vote against the Declaration in either house, while the other nine women voted for the declaration of war.
Split into simpler sentences: Jeannette Rankin, a committed Pacifist and the first woman elected to Congress (first elected in 1916), was the only vote against the Declaration in either house. While the other nine women voted for the declaration of war.