Maclays who emigrated from Appin to the United States by Liz Maclay - written 31/05/2015 17:28:42

Hello, I'm wondering if there's any knowledge here about the Maclays, who left Appin in the early 1700's and ended up in the United States.  Two of them were the the very first and third senators of Pennsylvania, Samuel and William Maclay, following the war of American Independence.  


Nowadays the American Maclays are very interested in finding out more about their roots in Scotland, but it's an unusual name and hard to get much information about.  Any help would be most welcome!  (I'm here in Scotland on sabbatical and planning a visit to Lismore sometime in the next couple of months, maybe that will help turn up more information.)