I too have been trying to find family information about Elizabeth Dull, Born about 1808 to 1810. My great-great grandfather was Ludwig (Lewis) Hershiser, B 1804. My great grandfather was Henry J Hershiser.
There is a lot of confusion between the Elizabeth Dull that married Lewis and the Elizabeth Dull (B 1832, D 1911) that married Leonard May Hershiser, son of Johanns and Elizabeth May Hershiser.