Do you know the ghost horse of Bannerman Street, St. John's?

Help! I am trying to track down some information about a little-documented ghost story from Bannerman Street in downtown St. John's.

Here is what I know, taken from Frank Galgay and Michael McCarthy's book "Olde St. John's: Stories from a Seaport City" (Flanker Press, 2001, page 111):

"A house on Bannerman Street was said to be troubled by the spirit of a white horse that galloped up a stairway and then vanished through a second-storey window."

Dramatic stuff! But that, sadly, is all that I know of the legend. I would love to know more! Does anyone know which house was said to be haunted by this rather extraordinary ghost? Have you heard the story before, and if so, from whom?

You can reach me by email at dale@dalejarvis.ca

Other stories of ghost horses also welcome!