Thanks for those reviews. Thayer's book sounds especially practical. If you get real serious about eating the wild edibles, then you can look around for more references.
(Used book stores, Library book sales)

Not long ago I saw nature pictures, posted of an area, where guys were practicing buscraft/survival. A vine (obvious to me, a grape vine) was discussed for positive id; so we all need to practice.
BTW, wild grape vines can be propagated by pinning a vine to the ground and covering Part of its length with dirt. It will put out roots, where you put the dirt; and you can dig up the satellite grape plant for transplanting.
This cloning cannot be done with regular grape vines because they
are composed of 2 parts: wild root, domesticated upper vine.

I believe most moist areas or stream systems, in the USA, have wild grape vines. You could be a Johnny GrapeSeed.