Portraits of Caroline Katzenstein from the Caroline Katzenstein papers [Am .8996]. Katzenstein's first foray into the woman's suffrage movement occurred when she was hired to be secretary of the Pennsylvania branch of the National American Woman's Suffrage Association (NAWSA). After proving her ability to publicize NAWSA's events and goals, she joined the organization's national membership committee and became executive secretary. When the suffrage movement split between those who wanted to obtain suffrage through the states and those who sought to campaign for a federal constitutional amendment, Katzenstein placed her support behind the amendment strategy. She helped found the National Woman's Party which led the suffrage movement to the ratification of the Nineteenth Amendment in 1920.