Copy letter from Robert William Frederick Harrison to E Hampden-Cook 'Dear Sir, In reply to your letter of December 18, Sir Peter Thompson was elected a Fellow of the Royal Society in 1746 and died in 1770. The Antiquarian Society you refer to is no doubt the Society of Antiquaries, and I would suggest your writing to the Assistant Secretary of that Society of Antiquaries is Burlington House, London, W.' 6 January 1909