Jacob Connett IN Indiana

Jacob Connett was found in Grant and Deleware Co Indiana. He married Nancy Dunlap in 1873. The 1880 census gave parents born Virginia. They had Sarah Elizabeth; George W; Joseph W; James; Walter; Charles; Mabel; and Lota. I want to find the parents of Jacob Connett. In 1870 Census Jacob is 20, a hired hand in the home of Christopher Mittank in Grant Co. Indiana born IN.