Tom Graham,
There is a 1850 census for Big springs twp,Seneca co,Ohio which shows a Francis @ age 58;Wife Theresa @ age 63-no children at home now.Image 32 of 47 (if you have ancestry.com census access). There is a Nicholas Etgen age 48 and wife Jane A.@ age 49 and 6 children.That is on image 22 of 47.Otherwise,you could view at your local library on their census microfilm.