Abstract: Records of American Labor Education Service (ALES), a voluntary organization established in 1927 as the Affiliated School for Workers to promote cooperation among the few existing summer schools for workers. ALES went on to aid unions develop their educational programs and encourage adult- and labor-education projects in colleges and universities. Included are records pertaining to the Bryn Mawr Summer School, 1921-1939, and its successor, the Hudson Shore Labor School, 1939-1951. Smaller groups of papers relate to the Vineyard Shore Labor School, 1920-1933, and the Barnard Summer School for Women Workers in Industry, 1927-1933.