I made a very short submission to another blog: Downton Abbey History at tumblr. Here's the link.
Someone had asked about people being interested in Downton Abbey because of any family history they might have, i.e, was your great grandmother a maid? Was your grandfather a lord?
I know for sure that one of my great grandmothers was a maid, here in America. Both of my great-grandfathers fought in World War One. Supposedly, they went back to Ireland after the war to take part in some shady dealings in the Irish republican cause--though what they did and what stances they took is something I don't know yet.