Speaking of Eaton...
(after Miss Hathaway hears that Jethro went to Oxford, but unaware it was a one-room schoolhouse in the hills, and not the famous university...)
MISS HATHAWAY: So, Jethro must've went to Eaton when he was younger.
JED CLAMPETT: Oh, If I know Jethro, he went to eatin' when he was just a baby.