Three generations of the Townsend family, renowned merchants and ship traders, lived in this colonial saltbox structure dating from the American Revolution. Sally Townsend was responsible for alerting her father to the fact that a certain Benedict Arnold was going to betray his country. Many of the original family furnishings are in the house, and there are rotating exhibits of Civil War memorabilia and holiday decorations. The house-museum reveals much about Oyster Bay
from the time of the Revolution through the town's affluent Victorian period.