Although Hopkins School was still somewhat unpopular with the locals, the school moved to a new larger brick building on the Green, due to the growth of New Haven. Hopkins School was somewhat rare among American schools in that it remained open during the American Revolutionary War. Former schoolmaster John Hotchkiss was killed by the British in July 1779 during their invasion of New Haven, and former schoolmaster Noah Williston was captured. Although the school remained open, records seem to indicate that it was frequently closed between September 1780 and October 1781, "for vacation". Shortly after the Revolution, Hopkins hired Jared Mansfield for two terms (1786–1790 and 1790–1795) to the unique position "Master of the Grammar School" to try to stabilize the school for the future. Between Mansfield's two terms, Abraham Bishop held a six-month term as headmaster during which he proposed radical reform, including making Hopkins coeducational, most of which never came to fruition. After the end of Mansfield's second term, the school returned to the pattern of short tenures for schoolmasters.