This thesis examines the life and accomplishments of Amy Brown Lyman, particularly as they relate to charity activities and social service work of the Relief Society of the Church of Jesus Christ of Latter-day Saints. It considers her early life, her call to the General Board in 1909, her contributions to the creation of the Relief Society Social Services Department in 1919, her association with national and international leaders of reform, and her efforts in sponsoring and supporting social welfare legislation in Utah. Also examined are her work with the Social Services Department during the Great Depression, her mission to Europe from 1936-38 with her husband, her years as General Relief Society President, 1940-45, and her release and retirement from Relief Society leadership with attention given to her last years and legacy.Lyman was one of the most significant figures in twentieth-century Mormonism and this account sheds light on the effect of her activities on her Church and the larger community.