Admin Forum:How do you locate a Wiki's founder if they are not Sysops?

I just read Help:Founders but it only suggests to check admins' pages for the founder tag.

This would be very tedious to do on larger wikis with many people, as there might be dozens of sysops.

Founders also sometimes voluntarily revoke their bureaucrat rights. Auto-adoption actually strips those rights leaving founders as only admins. Even that can be removed if the adopter opts to demote the sysop.

To give an example: w:c:FairyTail:Special:ListUsers/sysop. This wiki was made in March 2008 but all the current sysops joined after 2010, and none have the founder's tag.

Is there some way to figure out who founded a wiki in circumstances like this?

All I can figure is Special:Log/rights and track the changes over time to the earliest? +Yc 12:37, October 24, 2012 (UTC)