I would be glad to exchange information. We have almost a whole book that about 40 years ago or more(gosh writing that made me feel old)Frank White, a distant cousin, did a lot of research into the Calk family. Most of us were not smart enough to follow his train of thought and we kind of put it in the closet and forgot about it. When I can, I will get my Mom to dig it out and will send you some copies of it. It is really interesting.