Jude, in order to connect to William Charles Carman, you will need to add the "missing links" - profiles for your grandfather, and his father. If you're not sure of how to do that, start by adding your father's father first, which is done the same way you added your father.
I can help by adding your great grandfather Isaac, but the wives and other children will be up to you (as would be any finer biographical details) - and then you'd just need to attach the two.