David Quidnunc • Link
Clerk of the Works ...
... a phrase which does not have an internal rhyme in British English (as it would in American English). I assume "clerk" rhymed with "park" even in Pepys's day.
Cooper was clerk of the works for Hampton Court and Bushey Park from 1661 to 1687 (the year he died), according to the Companion volume.
He is called "officer of the King's Works" in the Index volume.