JOSEPH WADE B:1812, LIVED MARION CO, KY

I am looking for the parents of Joseph Wade, born 1812, KY.
In the 1880 census he lists both his parents as born in PA.
Joseph married about 1837 Mary Ann Scott.
He appears last in the 1880 census so must have died between 1880 and 1900.
This family always lived in Marion County, KY.
Known childrens names and (about) birth dates:
Mary J. 1838
Elija 1840
Margaret E. 1842
Maratha A. 1844
Greenberry 1845
Louisa 1847
Nancy 1849
Angeline 1850
Ruth 1851
Sarah 1853
Amanda 1855
Joseph 1857
John 1858
James 1861
Any help will be great - even an suggestion on where to look for data. Thanks so much - Carole