By Mark R. Elliott Mildred Trammell Elliott taught school for 46 years. She spent just over half of that span in Eastern Kentucky. Her arduous introduction to the profession at age 18 in 1929 came after just one year of college. The place, rough in terrain and reputation, was Cow Horn, in a very rural stretch of McCreary County west of the Big South Fork River. Cow Horn School in 1914, 15 years before Mildred Trammell taught there. (Photo court…