I read Noisy Astronomer's blog every day -- she's a grad student at the University of Virginia, and of course known the world around as Nicole Hasenpfeffer.
Reading her blog today I found out it's the birthday of the McCormick Observatory! This venerable observatory houses a 26 inch 'scope that I used many times in my career at UVa, and I have many fond memories of it (and some not-so-fond, usually involving long cold nights at the eyepiece).
She also mentions that it's Thomas Jefferson's birthday too. I think I'll celebrate by reading the Declaration of Independence. That's seriously one of the finest examples of writing in the English language.
And oh, the third one? My brother, of course. Happy birthday Merril!