I have looked several times and not been able to find anything. Facebook knows people want this and they know they don't want you to have this. They dedicate resources, legal and technological, to ensure that the only way to interact with Facebook is through their designated data-mining channels.
My advice would be to let the organization know that you don't have a Facebook account and if they want your help to volunteer that they need to use a platform that doesn't exploit it's users for profit. It's a totally unreasonable expectation.