McDonough County, Illinois
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McDonough is a county in Illinois. It was formed in 1826 from the following county/ies: unorganized (Schulyer). McDonough began keeping birth records in 1870, marriage records in 1830, and death records in 1870. It began keeping land records in 1817, probate records in 1833, and court records in 1830. For more information, contact the county at Macomb 61455. On the attached map, McDonough is located at D2.
For information about the state of Illinois see Illinois Family History Research.