This is a very impressive database! Thank you for taking the time to do this.
Really, it has been great fun for me to put it together. Knowing very little html programming made it a little more challenging, but I thing it looks presentable and should be decipherable and understandable to those who might happen across it.
I also have written a history of partisan representation in Congress which, though off topic in this thread, might be of interest to some. It is at
http://members.cox.net/rbt48/weather/Congress/History_of_Congress.htm