People who've never seen nor tasted the stuff are probably aware of
grape Nehi, thanks to Radar O'Reillly in "MASH" and a few other pop-
culture references. I think it and Yoo-Hoo are still available,
somewhere in the Cadbury Schweppes lineup.

I remember Upper 10 but haven't seen it in a long time -- I think it
too was part of the Nehi/Royal Crown empire, sort of their answer to 7-
Up. A Northwestern University website circa 2004 recommended Upper
10 among the soda selections at a local catfish joint. A Wikipedia
article suggests it might still be around in some countries, made by
the Cott corporation, but the Cott website doesn't mention it.

Dunno how faithfully the original or at least vintage recipes are
still in use, and in particular whether high-fructose corn syrup is
used.

Two that I vaguely remember seeing from childhood, which even then
were probably in the realm of mysterious old bottles rather than
anything that I saw in the store or tasted: "Tom Boy" soda and
something whose name I forget but whose slogan was "Made Its Way By
The Way It's Made." (The latter struck me as a fairly local or
regional brand for some reason.) This ring any bells?