Not what you are looking for but the Folsetter name caught my eye -
"Fol - (or Ful) A Norse word for a flow or swamp.
Setter - An enclosure or fenced in area (a farm)
The origin of the Folster name is believed to be from the farm called Folsetter in the parish of Birsay on the Main island of Orkney Islands of Scotland. If you obtain a map of Orkney, you will most likely find it on there. The name first appears in the census reports in the mid 1400's. The original name, Folsetter, would have been pronounced in Orkney as Fols'tter, thus accounting for the modern spelling. You may also see variations such as Fulsetter and Fulster. In North America, you will invariably see it as Folster.
If you check the Orkney census reports, you will find that no Folsters ever inhabited the farm called Folsetter. Instead it was mostly inhabited by the Spence family. The common theory about the origin of the name is that those who left the farm would have taken the name of that place to differentiate themselves from all the other Spences of Scotland. (Spence is after all, a very common Scottish name). For example, a man named George who moved away from the Folsetter farm might have called himself George of Folsetter, as was the common practice in the 1400's in Europe."
http://www.folster.org/origin.html