IN LATE SEPTEMBER, the discovery that the surgeon general of the army and head of the hospital at Cambridge, Dr. Benjamin Church, was a spy, the first American traitor, rocked everyone. Church had been one of the local dignitaries who had escorted Washington into Cambridge the day of his arrival. He was as prominent and trustworthy a man as any in the province, it was thought, a member of the Provincial Congress, poet, author, a Harvard classmate of John Hancock, and an outspoken patriot. Yet the whole time he had been secretly corresponding with the British in cipher, and was in their pay.
