Carrie Chapman Catt organized the WSP like a "political machine." The bottom level of the group included individual party members, who then chose district leaders who would represent them at borough and city conventions. The top level of WSP was a board of all of the district chairs. In total, there were 804 delegates and 200 alternates, making the WSP the "largest delegate suffrage body ever assembled in New York State." The WSP continued to lobby in the federal suffrage campaign until May 1919, when the WSP became the New York chapter of the League of Women Voters.