Jedidah Griffith Hertweck was my husband's Mark Hertweck grandmother. His father was James D Hertweck the second youngest son. We have quite alot of information,papers and photos on Jedidah and Peter Hertweck. The information you have looks correct except for Jedidah's maiden name. Her eldest daughter, Elizabeth,married a Wagner. Feel free to contact us and we
would be glad to share the information with you.
goodmorninglife@verizon.net