Grice, "British logician" -- and Peter Thomas Geach

Speranza

Bartlett defines Grice as a "British logician".

So was Geach.

Geach was first exposed to logic by his father, the professor of philosophy George Hender Geach.

Specifically, Geach senior had Geach junior read Keynes's 1877 Logic.

On the other hand, Grice senior was a businessman and, into the bargain, a non-conformist.