I'm so sorry, George. I had an outdoor guy like that who would go missing but we had a relationship (even if my husband did nickname him "p-i-s-s-o-f-f" because of his perceived attitude toward us) and I would wander around the neighborhood calling him. Our next door neighbor had an outdoor cat and put a cat door in his garage door (the people door into the garage from outside their kitchen, not the huge garage door for cars) and my cat I have now was found on a shelf in that garage, a stray. But my point is that I usually would find him "trapped" somewhere; he'd get in and not able to get out of someplace. I made it so our basement door could not close entirely and trap him (nail in the door jam/frame) and would check our shed, etc. Just calling usually got an answering meow eventually.