My family and I visited the White House today. While there, the kids and I took a detour to the National Archives. It was my first visit, and it was quite impressive. There is information there spanning over three hundred years. It was a bit overwhelming to say the least. I would highly recommend visiting if you are serious about family research. They have records in many forms, electronic records, still pictures, microfilm, etc. You can also access Ancestry.com for free at the National Archives. Pay them a visit when you can.