Computer Scientists

Pioneers in computer science:
http://en.wikipedia.org/wiki/List_of_pioneers_in_computer_science

H index higher than 40: 

http://www.cs.ucla.edu/~palsberg/h-number.html

Computer scientists:
http://en.wikipedia.org/wiki/List_of_computer_scientists

Members of the National Academy of Sciences  
http://en.wikipedia.org/wiki/List_of_members_of_the_National_Academy_of_Sciences_(Computer_and_information_sciences)