Priscilla, You asked where Free Presbyterians might have worshipped in Argyllshire in the first quarter of the nineteenth century. My response to you was, in part, misleading and I apologize. They could have worshipped almost anywhere but in a Free Church because the Free Church was formed during the "Disruption" in 1843. At that time over 400 congregations left the Church of Scotland to form the Free Church. There were other churches in the early 1800s who followed the Presbyterian form of governance and had split from the Church of Scotland, but they were not called Free Church. Your ancestors could have belonged to any of these or to the Church of Scotland. If you are interested, there are several web sites which outline the history of the Church of Scotland, its splits and reunions. The Free Church movement did spread shortly thereafter to Canada and other countries. Your ancestors undoubtedly joined there. Regardless, the parish records at the GRO are the most likely place to find them. I will stand by my recommendation to use both the Scots Origins and the Parish Records index at the Family History Center and to consider both Argyllshire and the areas surrounding it.