||Atlas of O'Brien County, Iowa
||containing maps of the county and townships and land owners of record
||Genealogical Society of Utah
||Salt Lake City, Utah
|Atlas of O'Brien County, Iowa: containing maps of the county and townships and land owners of record. (Salt Lake City, Utah: Genealogical Society of Utah, 1976).|
May be ordered through the nearest Family History Center.
FHL film numbers