It's been almost a year, so finally restoring much of the information from the old Eisenhard website.
One thing left to do is to try to OCR a document I received from Ruth Madeline Eisenhart. It is a PDF scan of a pamphlet written in 1971.
Update- thanks to Tod this has been OCR'd and reformatted.
Now its is searchable
For now here is a link to the descendents of Peter and Anna Maria Eyster Eisenhard.