Hello Tami, I have no information on town/township named Blackburn but, if you haven't looked at it yet, the 1920 census may give you the info you need if your ancestor was in the county at that time. Good luck on your search > Hello, I am sure you get a lot of questions about OK families! I do have a question that I am trying to figure out! My GGGUncle died in Jefferson County. His town was listed as Blackburn. > > Mrs. Tami Beaty --- James Davis --- jdavis20000@earthlink.net --- EarthLink: It's your Internet.