John James Johnston died 13 April 1875 Green Co Wisconsin. Buried in Monroe, Green Co. Wisconsin, Greenwood Cemt.
John married Mary Ann Hair 29 June 1842 in Knox Co Ohio.
I have a Census for their daughter Louisa A. Johnston Dunaway. Married to Colwell Dunaway 3 June 1866 in Monroe, Green Co. Wisconsin.
1880 Census has Louisa Dunaway, with 3 daughters living in Village of Monroe, Green co. Wisconsin and the next house is Mary Ann Johnson, age 56 born in Ohio. I believe that this is Mary Ann Johnston. Name was switched back and forth many time. As well as her age.