Robert
Here is the info, going back in time
John Blank (1831-1917) m to Elizabeth Engelmann (1839-1919)
Elizabeth's parents were Johann Nicholas Engelmann and Margaret Dorthea Kummel
Johann N Engelmann's parents were Johann Christian Engelmann and Marie Barbara Hoppstadter.
Johann C Engelmann's parents were Bernhard Engelmann and Maria Bladina Ludwig. Info on Elizabeth's mother's side:
Margaret Dorthea Kummel 's parents were John Michael Kummel and Anna Marie Sherer. John M Kummel's parents were Peter Kummel and Anna Dorthea Shiffler. Robert, would you mind corresponding with me privately via e-mail? I would be interested in finding out where you fit into the tree.
Hope you find the preceeding info helpful. Mary