I am from northern Dunn Co., and my family farm was on New Haven and Tiffany townships.I grew up with some James children.I will give you some names privately by email at firstname.lastname@example.org
I do not know where in New Haven township there is a cemetary, unless it was at an old country church.Do you have the name of the town or church?
I am living in western PA now, but again....I may be able to lead you to a family of James who might be a relation.They presently live near New Haven, if not in it.(I don't know exact boundaries.)Yours truly, Sue