Your Mary A. Abrams is shown on the 1870 census of Polk Township, Monroe Co., IN like this:
Elias Abrams, 40, farmer, born in KY Sarah, 30, born in IN Elizabeth J., 16, IN Rebecca C., 14, IN Eliza A., 12, IN Squire J.H., 9, IN Milton, 8, IN Mary A., 5, IN James, 2, IN
In 1850 Elias is shown in the census of Perry Township, Monroe County, IN with his father Elias like this: Elias Abrams, 46, KY Elizabeth, 46, KY Susannah, 25, Ky Elias, 20, KY Milton, 17, KY Elisha, 10, KY Polly A. 9, IN William Green 2, IN
Check out the ancestral file at http://www.familysearch.org/http://www.familysearch.org/ for Elias Abrams b. 1779 in PA and died in Madison Co., KY, son of Thomas Abraham and Jemmiah Friend.I would guess that would be the father of the Elias b. 1804 shown on the above census.Just a guess.