(01 of19)
Open Image ModalA young woman works as a warper on a power loom at the King Philip Mills, Fall River, Massachusetts, 1916. (credit:Lewis W. Hine/Buyenlarge/Getty Images)
(02 of19)
Open Image ModalWomen workers in a garment factory, Vermont, circa 1915. (credit:Underwood Archives/Getty Images)
(03 of19)
Open Image ModalA group of women focus their attention on their work while employed by the Gibson Art Company of Cincinnati, Ohio, ca.1910s. (credit:Cincinnati Museum Center/Getty Images)
(04 of19)
Open Image ModalWomen operate the new stretching machine for surgical dressing at the Red Cross headquarters in Cincinnati, Ohio, circa 1915. The machine, which was invented by Milton Griffith, can stretch 28 bolts of gauze in one day. (credit:J. R. Schmidt/Paul Thompson/FPG/Getty Images)
(05 of19)
Open Image ModalA group of chorus girls at the annual charity reception and dance held by the Ladies' Auxiliary of St Vincent's Hospital at the Waldorf-Astoria in New York, circa 1915. From left to right, Priscilla Mitchell, Dorothy Adrian, Temploe Joyner, Dorothy Kane, Dorothy Scully, Kathleen Kevin, Mary Lembeck, Helen McManus and Ruth Thompson. (credit:Paul Thompson/FPG/Hulton Archive/Getty Images)
(06 of19)
Open Image ModalA woman working in a munitions factory during World War One, aiding the war effort whilst the men are away, USA, circa 1914-1918. (credit:FPG/Getty Images)
(07 of19)
Open Image ModalA young woman works as a harness maker at the American Linen Company, in Fall River, MA, 1916. (credit:Lewis W. Hine/Buyenlarge/Getty Images)
(08 of19)
Open Image ModalA thirteen-year-old girl (identified only as Mary) works with her aunt as they make flowers in a tenement room, New York, New York, 1911. (credit:Lewis W. Hine/Buyenlarge/Getty Images)
(09 of19)
Open Image ModalView of women factory workers seated at their work stations while operating machines to polish lenses, during the early twentieth century. (credit:PhotoQuest/Getty Images)
(10 of19)
Open Image Modal29th May 1919: Women rivet heaters and passers on ship construction work in the Navy Yard at Puget Sound, Seattle, Washington. (credit:MPI/Getty Images)
(11 of19)
Open Image ModalFemale American college students working on a farm, as replacements for men called up to the military in World War I, USA, May 1918. (credit:Topical Press Agency/Hulton Archive/Getty Images)
(12 of19)
Open Image ModalWomen of the Sarah Caswell Angell chapter of the Daughters of the American Revolution, from Ann Arbor, Michigan, engage in war work activities to assist the Allied cause during World War I, 1918. During their sessions, they knit, make hospital garments, sew for French children, and make aviators' vests. (credit:PhotoQuest/Getty Images)
(13 of19)
Open Image ModalA woman machine operator working with a cutting tool at an aircraft factory during World War 1. (credit:Paul Thompson/FPG/Getty Images)
(14 of19)
Open Image ModalWorking women aiding the war effort in World War One; Agnes Kelley, Blanche Chegnon, Marie Provencher, Nina Hosington and Mary Tully, all from Lowell, Massachusetts, 1917. (credit: Paul Thompson/FPG/Getty Images)
(15 of19)
Open Image ModalA woman working in an American aircraft factory, 1917. (credit:FPG/Hulton Archive/Getty Images)
(16 of19)
Open Image Modal'Farmerettes' help collect funds to supply milk for babies in France during World War I, circa 1918. From left to right, Mable Standley, Helen Gates, Mary Kelly, Anna Robinson, Lottie Vernon and Florence Martin. (credit:FPG/Hulton Archive/Getty Images)
(17 of19)
Open Image ModalA member of the Women's Land Army of America plows a field, with a plow drawn by two horses, California, 1917. (credit:Bain News Service/Buyenlarge/Getty Images)
(18 of19)
Open Image ModalWomen out picking cotton, USA, circa 1910. (credit:Vintage Images/ Getty Images)
(19 of19)
Open Image ModalStudents at Barnard College participate in a botany class at the college's greenhouse, ca 1915. (credit:Bain News Service/Buyenlarge/Getty Images)