Edith Clark x1891
Mother was Harriet K. Richards Williston x1847
Sister was Emily Williston Clark x1878
Sister was Mary R. Clark x1886
Sister was Eliza Smith Clark x1890
Source
All information from One Hundred Year Biographical Directory of Mount Holyoke College 1837-1937, Bulletin Series 30, no. 5; published and compiled by the Alumnae Association of Mount Holyoke College, South Hadley, Massachusetts