I don't think I ever had an album of Arlo Guthrie and Pete Seeger together, but I did see them at the 1980 Atlantic Folk Festival in Nova Scotia so maybe I heard it then and it stuck in my mind. (Although very little from that weekend sticks in my mind)
BTW, today I found a whole box of my vinyl when looking through my storage locker. It was like meeting a group of old friends after a ten year separation. Woody, alas, was not there.