EMMA A. DERTZMrs. Emma A. (nee Schulz) Dertz, 1412 W. Chase St. Chicago, a clerk at the Cook County farm bureau, died suddenly Thursday—the day after her 70th birthday.She was the mother of Alvin Dertz, and grandmother of Beverly, Janet, and Jay Dertz. She was the sister of Harry, Fred and Carl Schulz and the late Ester Dertz, Gertrude Carlson, and William Schultz.Services were Monday at the Hallinan Funeral Home. 2601 Vermont, at 1:30 with Pastor F. W. Lange of the First Lutheran church officiating. Burial was at Mt, Greenwood.* * *CLARA M. WINTERFELDT