When I was growing up in a small town in Arkansas, a lady used to roam the streets aimlessly from dawn to dusk. If I ever learned her full name, I've long forgotten it, but she was called "Walkin' Sally". The tale went that her son was killed in WWII and that she roamed the streets looking for him. This lady obviously was mentally disburbed, but she was deemed harmless, and she was in no danger in this small town, so her walks went on until she died. After I grew up and studied folklore in college, I learned that this was a common urban legend. Either there were many towns where women walked to find their lost loved ones, or nobody really knew why Sally walked.