Change "Creator" of Group

HI SI Team

http://www.finalbug.net/groups-learn-post-production-socially-fcpx-and-more

"Archy" created the Group "FCPX NOT Pro"
I now want to change it to created by "Paul David Murray"
I have tried to edit this in the front and back end but see no where to do so?

Is this possible?

Do I have to edit a MySQL table to change the creator if so which?

thanks

Paul