Kate,
I am so, so sorry for your loss. I consider myself fortunate enough to have interacted with your father socially on more than a few occasions. One of the most intelligent,sincere, sweetest men I have ever had the pleasure of engaging with. Everything he was on this message board, he was all that and much more in person. I have also met your brother Sean. This really hurts. My condolences and thoughts are with your family. He is leaving a big hole in a lot of places. I can't even fathom.