Helen Valeska Bary (1888 - June 22, 1973) was an American suffragist and helped establish the U.S. government social welfare administration.
 She campaigned for suffrage at the state and local level.
 In 1914, she worked for the California Industrial Welfare Commission investigating the working conditions of women laundry workers, which she wrote about in her report, "The Employment of Women and Minors in the Laundry Industry of California" in 1917.
 Shortly after World War I, she worked in Porto Rico for the Federal Children's Bureau as a researcher and social reformer, reporting on the living conditions of indigent and homeless children on the island.
 In her 1921 paper, "The Trend of Child Welfare Work", published in the "North American Review", Bary wrote, "The greatest enemy of childhood has been the fatalistic complacency with which every phase of child life has been regarded".
 Bary worked for the federal Social Security Board (SSB) since its inception in 1935 during the Great Depression.
 She worked there until 1948, representing the SSB in western states, helping them to develop social welfare reform plans in order to receive federal money.
 Shortly before her death in 1973, Bary was one of twelve women interviewed by Jacqueline Parker for her work on the "Suffragist Oral History Project" for the UC Berkeley Oral History Center, "in order to document their activities in behalf of passage of the Nineteenth Amendment and their continuing careers as leaders of movements for welfare and labor reform, world peace, and the passage of the Equal Rights Amendment".
Frances Lillian Willard "Fannie" Munds (June 10, 1866 – December 16, 1948) was an American suffragist and leader of the suffrage movement within Arizona.
 After achieving her goal of statewide women's suffrage, she went on to become a member of the Arizona Senate more than five years before ratification of the 19th Amendment to the United States Constitution granted the vote to all American women.
Ellis Meredith (1865–1955) was an American suffragist, journalist, and novelist, known as the Susan B. Anthony of Colorado.
 Her mother Emily R. Meredith was a suffragist as well.
Terence Vincent Powderly (January 22, 1849 – June 24, 1924) was an American labor union leader, politician and attorney, best known as head of the Knights of Labor in the late 1880s.
 He was elected mayor of Scranton, Pennsylvania for three 2-year terms, starting in 1878.
 A Republican, he served as the United States Commissioner General of Immigration in 1897.
 The Knights of Labor was one of the largest American labor organizations of the 19th century, but Powderly was a poor administrator and could barely keep it under control.
 His small central office could not supervise or coordinate the many strikes and other activities sponsored by union locals.
 Powderly believed that the Knights was an educational tool to uplift the workingman, and he downplayed the use of strikes to achieve worker goals.
Helena Hill (1875-1958) was an American suffragist, and a member of the National Women's Party.
 She was the daughter of Connecticut congressman Ebenezer Hill.
 Her married name was Helena Hill Weed.
 She was among the American suffragists who picketed the White House, and on July 4th, 1917 she became one of the first women to be arrested for doing such, while carrying a banner stating, "Governments derive their just powers from the consent of the governed."
 She served three days in prison in Washington, D.C., for this.
The Terence V. Powderly House is a historic house at 614 North Main Avenue in Scranton, Pennsylvania, United States.
 It was the home of Terence V. Powderly (1849-1924) from his early life until 1921.
 During this time he led the Knights of Labor, an early but unsuccessful attempt to establish a broad-based labor union.
 He also served as mayor of Scranton for several terms.
 It was designated a National Historic Landmark in 1966.
 It has remained a private residence and is not open to the public.
Alzina Stevens ("née" Parsons; May 27, 1849 – June 3, 1900) was an American labor leader, industrial reformer, journalist, and suffragist from Maine, active in Hull House.
 She was one of the representative women in the order of the Knights of Labor, and her history was, in some of its phases, a cornerstone of woman's work in the U.S. labor movement in the last decades of the 19th century.
 Stevens was an ardent advocate of equal suffrage.
 For several years, she served on the editorial staff of the "Toledo Bee"; she was also half owner and editor of the "Vanguard", an organ of the People's Party.
Alma V. Short Lafferty (October 12, 1854 – November 17, 1928) was an American suffragist, clubwoman, and politician.
 She served two terms in the Colorado House of Representatives, from 1908 to 1912.
Doris Stevens (October 26, 1888 – March 22, 1963) was an American suffragist, woman's legal rights advocate and author.
 She was the first female member of the American Institute of International Law and first chair of the Inter-American Commission of Women.
Knights of Labor (K of L), officially Noble and Holy Order of the Knights of Labor, was the largest and one of the most important American labor organizations of the 1880s.
 Its most important leader was Terence V. Powderly.
 The Knights promoted the social and cultural uplift of the workingman, rejected socialism and anarchism, demanded the eight-hour day, and promoted the producers ethic of republicanism.
 In some cases it acted as a labor union, negotiating with employers, but it was never well organized, and after a rapid expansion in the mid-1880s, it suddenly lost its new members and became a small operation again.

Question: Alzina Stevens, an American Suffragist was a member of which organization lead by Terence V. Powderly?
Answer: Knights of Labor