Well, the house is surrounded by no trespassing signs, and so I wrote to the owner, saying I was a fan of old trailers and had one like his and just being friendly, no response. That was a couple months ago.
Then I was looking at the 'winter pics' thread and saw Ken's pic of his 59 18' Traveller and immediately thought- that's it! I'm just sure of it. After looking at the back side repeatedly (from even further away than the cow-side) I think it only has one window on the streetside. But the curbside placement is the same, the door within a door, and the front window is a little more narrow top to bottom than the one on my caravel
. So anyway, that's my final conclusion. 58-59 18' Traveller. Sorry to leave you all hanging so long.