I would imagine so, Andrew, if your Rea line stayed in Roxburgshire a few centuries. There was an Adam Rea living in Airth Parish in 1666-1687 and there was a Rea family in Jedburgh Parish, as well, around the same time.
However, I'm not interested in connecting them with any Reas who were still living in Scotland as late as 1800. My quest is to find out where my Rea line emmigrated to Northern Ireland from in the early 1600s. BY 1800, my line had been in Pennsylvania for 26 years, from County Down, Northern Ireland.
So, I'm sure your Janet Rea is related to some Reas who might have been in Roxburgh since the 17th century, but I don't know if they're mine, as I'm searching several lowland counties at once, looking for the origin of my line. Roxburgh is only one of several places they may have come from. Thanks.
Gary Rea