How do you find an owner of a facebook group?

[Bob]

A support group was set up on facebook several years ago but unfortunately the creator and hence admin is no longer known. I have been asked to investigate how we can 'reset' the admin to a current group member. Does anyone know how or who I should contact to report that the group does not have a n active admin and ask how I reset it to another member ?

[Reactive Ravi]

Go the first post in that group's wall , it will be there like "XYZ started the group on some date."

[Daniel]

Go back to the beginning of the groups posts and see if it says who started it if it does not say it on the bottom or anywhere on the group than To Get the Group Owner Changed you have to Contact Facebook at the Help Center and Tell Them about it