My family originated in Colorado, but I now live in Delaware. I am aware of a rather extensive family tree on Sweany ancestors that is held by Sue Cashatt in Kidder, Missouri.
Unfortunately, Sue doesn't use the computer, so you have to send surface mail or telephone to share information. Sue inherited the responsibility for continuing the work of her uncle Paul Sweany. It was a massive effort.
Sue has a family reunion about once a year.
Sue's mailing address is P.O. Box 75, Kidder, MO 64649 and her telephone 816-575-2514.
I have no way to know if anyone knows about this collection of information.