A residence rich with history is open for public exploration and education.. In Short This house has a remarkable history, dating to the time it was abandoned by a family of British loyalists at the outbreak of the Revolutionary War. Requisitioned by the Continental Army, it served for nine months as George Washington's headquarters. Henry Wadsworth Longfellow moved in decades later as a boarder when he taught at Harvard. The study, where Washington conferred with his staff, is left as it appeared when Longfellow wrote his familiar poems there.