[Ol' Dan Tucker]

Our Township is called Hempfield. Local lore is that is was so named by a certain famous Virginia surveyor because wild hemp was growing there about the time of the famous Battle of Bushy Run during Pontiac's Rebellion.

...

Abbie Hoffman used to use this little bit of local historical lore to claim our founding fathers were potheads back in the 1960s.

It's true that Washington, as well as several other farmers of the era grew hemp, a.k.a. cannibis indica. There is no evidence they smoked it, however.

[Vigilanteman]

cannibis indica, of course, is from the same family of cannibis sativa, the latter favored by potheads, the former by rope and fiber makers.