Nothing worse than killing a ghost!
All I can say is that, Fuddy, you would have a ball in most of my houses. We've owned literally countless old houses, but the five oldest and most well-known are as follows:
1692: Locust Grove Farm. Oldest heritage farm in the USA when we closed it ca.1993. Continuously passed down through my family for 303 years, until 1995.
1701: Thompson-Neely house. Owned by my family 1748 - 1926, my grandmother used to spend her summers there, it's now part of the parks service.
1730's: My current house, constructed by another family in four phases of 1734, 1775, 1894'ish, and 1995. No ghosts here, so far as I can tell.
1740's: Kittel House, used as field hospital during Rev. war, three or more soldiers interred in basement. We have another regular member here who lives just around the corner from that house.
1740's Kieth House, owned by my great grandparents, and used as Headquarters by Geo. Washington for 10 days leading up to Christmas day Battle of Trenton, 1776. It was constructed on land originally intended for PA founder William Penn's house, but when he arrived he found others already squatting here, so he built his house a bit farther east at what is now Warrington.