By Pat VerSteeg — Crawford–Recently Kate McDaniel, long time Crawford resident, had some interesting guests visit in her home. Leo McDaniel, friend Donna and Leo’s son, Dr. David McDaniel, stopped by for a visit. Leo formerly lived in the Crawford area and was a neighbor to Kate years ago. His son, Dr. David McDaniel, has an interesting and distinguished background as the inventor of the PET (Positron Emission Tomography) scan. The PET scan is used worldwide in clinical oncology imaging applications.