Ann Boyle Hemphill and Catherine Boyle Montgomery took their widow mother Hannah Boyle to Cave Spring. Hannah died there. I suspect the windows that you found in the cabin come from the home of Peter and Hannah Boyle in Jackson County GA. That is where Peter died and then Hannah Boyle moved to Floyd County, with her daughters. Prior to Jackson County, Peter and Hannah Boyle had another daughter that married into the Clements family in Sparta. They all lived in Sparta (late 1790's) The Clements were building construction distributors. They purchased all the supplies to build the square in Sparta. I have a feeling the Boyle's got the windows from the Clements in Sparta prior to building their home in Jackson County GA.