I am not related but thought this may help someone. From 1940 Who's Who in Iowa:
Dr. Edna Kathryne Sexsmith, physician, born Greenfield, Iowa, Feb 6, 1884, daughter of Mathew Taylor Sexsmith and Elizabeth Donneley. Educated Greenfield High; ISTC, Cedar Falls, 1908-09. Iowa State Coll, BA, 1913; Univ of Illinois, MD, 1918; also Pellegra Research work with Dr. William F. Peterson; Nu Sigma Phi; Phi Omega Phi. Married Dr. James Asbury Harper, Dec 5, 1934, Greenfield (dec); 1918, practicing med, Greenfield; Adair Co. coroner several years; 1935, Pres of State Womens Med Assn; Adair Co & Iowa State Med Societies; AMA; mbr Womens Natnl Med Assn; OES 91; office and residence at Greenfield.