Hank: Are you sure you don't hie from Bradford County, Pennsylvania? It really is exciting to hear someone else with experience of that expression! We're clearly citing regional variations of the same expression. I wonder if there were Conaways in your family's area, and that altered the saying. Perhaps "beyond Robinson's barn" is an even older version. (Although the rules of linguistic research usually prefer the harder or less logical saying as older rather the easier, which makes "Robin Hood's barn" more likely to be authentic.)
Pine River Boys, Co I, 7th Wisconsin
"We're... Christians, what read the Bible and foller what it says about lovin' your enemies and carin' for them what despitefully use you -- that is, after you've downed 'em good and hard."
-Si Klegg and His Pard Shorty