I have a Jacob Holderman, who is the son of John Holderman and would be born about 1837. This is what I have from the 1850 Census for Washington Township, Preble County, Ohio:
John Holderman 49 M Miller $8,500 Virginia 4 attended school in past yr. Jemima 38 F Ohio Sophrenia 16 F Ohio Jacob 13 M Ohio Fergus 11 M Ohio Sally 9 F Ohio Isabel 6 F Ohio Sarah A. 3 F Ohio John Jr. 2/12 M Ohio
By the way (you may know), Holmes Cty, Ohio has the largest Amish/Mennonite population in the US today.My dad's side of the family is near Holmes County and I love visiting!