Dr. David F. Hartzfeld, Ph.D., 82 Dr. David F. Hartzfeld, Ph.D., 82, of Ashland passed away on Saturday evening, March 23, 2024 in his home with his family by his side, after living with a Parkinson’s diagnosis for 10 years. David was born on October 6, 1941 in McKeesport, Pennsylvania, the son of the late […]