Sir Henry's eldest son, Charles won a King's Scholarship to Eton College (where he was a friend and contemporary of Douglas Hurd, and won the Newcastle Scholarship a year before him) before reading an MA and PhD in Classics at Trinity College, Cambridge.
He then entered teaching, first at Marlborough College and then (from 1954 to 1984) at Eton, where he rose to housemaster.
His publications include an Oxford University Press edition of Orestes by Euripides with commentary, and numerous journal articles and reviews.
From 1982 he also cooperated with his Cambridge tutor John Morrison, the banker Frank Welsh and the naval architect John Coates to produce a full-size replica of a Greek trireme, founding the Trireme Trust with them and culminating in the launch of the Olympias in 1987.
After his retirement he became an expert amateur botanist, specialising in flowers on Hampstead Heath and chairing Highgate cemetery.