Cog,
I'm not sure if this thread is still alive, but however....
I'm pretty sure I can specify the Furlong house on Castlehill Street. My mother lived on the Faythe at Swan View and she is sure that the Furlong house was actually at the top of the hill and could be mistaken for being on the Faythe. If you look on Google Earth and use the Street View option you can see it.
My mothers mother was a Furlong, and my mother's Grandfather was Charles Furlong. They lived in Talbot Street in 1901, in Bogganstown in 1911, and were living on Swan View by the time my mother was born in 1921. My mother remembers Molly and Christine Furlong calling by and referring to her grandfather as Uncle Charlie. My mother was not 100% sure, but believed that Charles was related to Mary not Partick Furlong (Mary's maiden name was also Furlong). My mother and her siblings referred to Mary Furlong as Aunt Mary. My mother's side of the family continued to live on Swan View until the 1970s. Their family name was Kehoe.
I'd be glad to let you have any further info.....assuming this message link is still working!
Gearoid.