The gawker-tj1.chr.gz file was downloaded (as gawker.chr) from:

http://www.the-jedi.co.uk/downloads/john/

which was announced by Simon John in:

http://www.openwall.com/lists/john-users/2011/02/05/1

and described as:

"As a treat, I've also uploaded my Gawker charset which I made over 3
days using the omp-des-7 RPM, the customary blog entry is at:

http://blog.the-jedi.co.uk/2010/12/17/gawker-password-cracking-with-jtr/ "