Respectfully Quoted: A Dictionary of Quotations. 1989.
Sir Winston Leonard Spencer Churchill (18741965)
This is the sort of pedantry up with which I will not put.
WINSTON CHURCHILL, marginal note after receiving a civil servants objection to the ending of a sentence with a preposition and the use of a dangling participle in official documents.Kay Halle, Irrepressible Churchill, p. 166 (1966).
In other versions of this anecdote, the word English is often used instead of pedantry.