Posted on: Venango Co. Pa Query Forum Reply Here: http://cgi.rootsweb.com/~genbbs/genbbs.cgi/USA/Pa/Venango/2376 Surname: Darr, Tarr, Derr, Dorr ------------------------- The surname I am researching is Darr, but back in the 18th century it was sometimes spelled as Tarr because in German T was interchangeable with D. Were your ancestors German? I haven't been able to go back any further with my research than 1776 when Christian Derr volunteered into the Revolutionary War. I am wondering if there is a link here? Lorraine