I have some deeds from Moneygar in south Tyrone and there's a Roger (and later on a Hugh) on those deeds. Off the top of my head I can't remember which deeds they're on, but the dates range from the 1760s on to the 1810s, so it could be that someone emigrated up north towards Derry/Donegal.
Let me know how you've got on since you posted originally and who knows, we may be able to connect ourselves up!
PS. Your Boyd roots aren't Irish, by any chance? I've Wicklow Boyds in another part of my tree too!