I am the g g grandson of Christiana Heltzel (b. 3 Jan 1794, d. 20 Oct 1878) who married my g g grandfather, Jacob Greenawalt (b. 1781, d. 30 Mar 1872) in York, PA. Both are burried in the Prospect Hill Cemetary, York. Their children were: Mary Ann, Catherine, Alexander, Romanus, Eliza and Henry (my g grandfather)
Don't know if you're in this line or not, but it might help your research.