Patti:
After rechecking with Medical Records, it appears that you may need to track down the nearest cancer registry (a service found in a large hospital) to the medical facility where your father died. This service tracks by diagnosis all cancer deaths. You should contact the city government or the medical facility itself to locate a registry. If you still don't find what you are looking for, try contacting Noreen at (847)872-6459. She is the cancer registrar for our facility and she may be able to give you another search avenue.
Good luck,
Kim