Jacob "Jack" Gurin 

Doesn't seem worth it to make a stub for him just to document the nick name. The NSA include it on their press release . It's worth documenting as more documents become available via FOIA requests. An example of where it is useful to know is: http://www.nsa.gov/public_info/_files/cryptologic_quarterly/Youve_Got_to_Go_By_the_Rules.pdf