[HAHalliday]

I followed up the suggestion re San Diego and did reach the residence of Colonel Rizon. The person who answered was a Hispanic housekeeper or care giver who said that he had died several years ago (she was vague as to when, perhaps 15 years, perhaps more) and the widow was deep in Alzheimer's. They had no children, but the housekeeper knew of a nephew in the American mid-west. She took my number, promising to pass it on to the nephew who might (or might not) contact me. Roughly 14 hours later I have heard nothing.

So the search for an obituary notice for Robert Louis Rizon continues, now narrowed to the San Diego area but vague as to date. Any further help would be appreciated.