Neighbour's Ghost

At my grandma's place, outside the city, there was an outhouse which I made sure that I used before it got dark. In a town that didn't have any electricity yet, you wouldn't want visit the outhouse in the dark. One night at dinner my grandmother told my sister, who was 8, and I that there was a ghost of a lady that sometimes appeared at night on the porch of a house just about 50 yards away from us. At around 9 o'clock my sister and I looked out the window and saw the ghost on the porch walking or floating back and forth.