I am sure that we tie in somewhere but It is probably further back than you can trace right now.I don't have a George Adam Clum and the Only Jacobi that I have is Elizabeth who is the mother of Maria Hyser.
I will forward a note to my "Clum Cousins" and see if they have anything.
My information did not come out of a family Bible.I have my GGFather's genealogy research and I have gone from there.There is a lot of stuff that you can find on the internet.A lot of it is not documented.A lot of my stuff is not documented but I don't quibble about it.I add the stuff and then add the documentation when I can... Genealogy as you know, is a process that never ends.
Just so you will know, the software package that I use is called LEGACY 3.0.I put all of the Clum information that I can in it so that I can see where all of the pieces fit.Then, if someone comes along and needs to see if I have information on a cousin or something, I just pull up the list of names and check it out for them.
Anyway, I will contact the Clum Cousins and see what I can find for you.