Hey MDL,

Here's a link to K. Callan's son's webpage: www.cs.cmu.edu/~callan/

It has his photo and things about his research / job if you're interested.

Sorry, I took so long to reply to this thread. The link on his webpage to his photo was broken for a long while and RL (specifically my master's thesis which is done now dance ) has been a drag.

Cheers,
Simba

Check out my social-networking game I created just for FoLCs: http://folc.mindkin.com