Criminally Inane

I've been doing some amount of research into my family's genealogy, and it's fairly frustrating. Passenger lists from ships have turned up little, and the census records, while valuable, have had entirely too few details. What I have determined is that the branches of my family have been around in America for a decent amount of time, probably first having arrived in the early 19th century. Even earlier than the potato famine, with regards to the Irish parts. As I previously understood, the different nationalities appear to be Irish, English, and Scottish, which I suppose means I'm essentially British Isles through-and-through. Which is no surprise. I'm white as a polar bear.