Step Inside Endwell’s Beautifully Stunning and Historic Washingtonian Hall [PHOTOS]Step Inside Endwell’s Beautifully Stunning and Historic Washingtonian Hall [PHOTOS]Washingtonian Hall, also known as Amos Patterson House, was built in 1799 and is considered one of the oldest homes in all of Broome County and it's for sale!Traci TaylorTraci Taylor