Cowles served as eighth international president[1] of the General Federation of Women's Clubs (GFWC) from 1916 to 1918, and was then re-elected from 1918 to 1920.
[4] In 1890, in Chicago, she married Josiah Evans Cowles, M.D., of Los Angeles, California and they made that city their home.
[4] Cowles served as President of the California State Federation Women's Clubs, 1905-06.
[3] In religion, she was Episcopalian,[4] and served as president of Women's Auxiliary Diocese of Los Angeles.
[7] Her papers are held in a collection by the General Federation of Women's Clubs, Washington, D.C.[8]