It's nice Michele that you're not afraid. But what about your children? I don't understand why you don't do something about that when it bothers them.
Anyway, it probably is a ghost of someone who either lived there or just was attracted to that place somehow. I have nothing against the dead when they stay on the Earthplane for a good reason, doing no harm. But I don't think a ghost who scares kids belongs to that category.
Merrick1