Alice, I looked at my Ohio Census Index for 1870 and no John or Elizabeth Madden appear in Knox County. This index covers only heads of household, plus males over 50 and females over 70. The nearest county with a John Madden would be Holmes County. Here is the listing for that John. Surname, Given, Age, Sex, Race, Birthplace, County & Township, Microfilm Reel #, Page #. MADDEN , JOHN ,67, M , W , PA , HOLMES , WASHINGTON TWP ,1224,230 Hope this helps. Kathy << I am looking for information on John and Elizabeth Madden. Does anyone have any information on where they lived or are buried in Knox County. They were married in Knox County 25 Feb. 1836. Thanks Alice>>