These are the members of my family that have webpages:

Picture of Paul and Mom
Dan Grayson
My father is a retired Mathematics professor who worked at Math Department at the UIUC. As one of the cofounders and owners of Wolfram Research, Inc, he helped write the first version of Mathematica. He taught me to understand Math when I was young and that is what made me good at it.
Carol Livingstone
My mother ran the Division of Management Information at the UIUC before retiring.
Paul Grayson
My brother is working at Pololu, a small robot company run by him and a handful of friends. He is good at robotics and computer programming. He is seven years older than I.
Richard Grayson, M.D., (blog)
My grandfather is a doctor. I enjoy discussing science and philosophy and politics with him.
Bobbie Grayson
My grandstepmother is a real estate agent.
Beth Jaxon, (blog), (deprecated blog)
Beth is studying harp performance in France.
Noah Jaxon's blog, (Noah's debate blog), (Noah's other blog)
Noah is studying Physics at the UIUC.
Reams
The Reams operate Ream's Elburn Market, an award-winning meat store in Elburn, Illinois. If you are ever on Route 47 in northern Illnois, you should definitely try their bratwurst, beef jerky, and bier sticks.
Stewart Ream
Stewart is my cousin.
Rachel Hestilow's blog
Rachel is a software engineer.

More information is available at the The Grayson Family site.