He very well could be alive. I have seen several headstones that have not date of death as that person is still alive. One of the checks that I made before posting the message was to look at legacy.com for his obit and did not find one. Which is unlikely, but not unheard of. I no longer live in that area and have had very little contact with that cousins line for a while now. Will try and reconnect to see what I can find. Thanks for your time and work. I would say from what you found that he is still with us.
Not sure if your are related or not or if you are interested, but I just updated his brother's, Fred Potter, record at Find A Grave, 31207211. He had some life, was a POW in WWII and survived the Bataan Death March.