Plaque

Hunc lapidem posuit Rogerus Gaskell Hetherington
Scholae Cholmeleianae et alumnus et gubernator
A.D. XVII Kal Nov MCMXXXVII
Ea spe ut discipuli iuniores suas ipsi aedes
fama et honore in posterum augeant atque ornent

{We think the Latin text tells us that Roger Gaskell Hetherington, who was an old boy of Highgate School and a school governor, laid the foundation stone on 17 Nov. 1937 in the hope that young pupils in the future will contribute to this house and increase its reputation.}