Hello,
I see that you have posted this a very long time ago but I am hoping you will still receive this. I am researching my family tree and it appears that Lorentz Derr (Durr) could be my great x4 grandfather - his son I believe was Philip Derr who lived and died in Ringtown, Schuylkill County, Pennsylvania.
Do you have additional information on the family line - I have some but not sure how accurate it is.
Hope to hear from you :-)
Thanks
Doreen