Madison Township (west half) Odon town, Daviess, Indiana, United States
First name in 1900 census is probably misspelled.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMBL-2MV : accessed 13 March 2017), Mary L Barnell in household of Samuel L Barnell, Madison Township (west half) Odon town, Daviess, Indiana, United States; citing enumeration district (ED) 8, sheet 3A, family 50, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,365.
Have you taken a DNA test? If so, login to add it. If not, see our friends at Ancestry DNA.