Ken Shan
From Eugene Eric Kim
http://www.digitas.harvard.edu/~ken/
I went to college with Ken. We had many interesting conversations that first began when he showed me huhebi in 1995 (I believe).
The last time I talked to Ken was when I ran into him at the first Lightweight Languages Workshop at MIT in 2001. (See my writeup for Dr. Dobb's Journal -- password is required.) Ken made an offhand observation that I thought was brilliant: spreadsheets are functional languages.