Yes, quite a few now. From bronze age kids up to a a guy in a car crash in the 70's. Most of them seem to be around 1850 though. No idea why.
I research nearly all that I see to find out who they were, and that it is not just imagination. Most of the time I find out exactly who they were, or at least some supporting evidence as printed proof.
Most involve a death or at least pain and suffering and fear.
Also some poltergeist activity. A stereo that was possessed for a few months, lights turned off when asked, other items turned off, stuff moving around.