I'm familiar with the Donat's in Jacksonville, PA.
I even have taken photos of Donat's at Jacob Union cemetery in Jacksonville, PA. The Donat farm use to be just west of Leaser lake. It was my family Eckroth/Eckenroth/Eckenrode farm before the old Donat farm. It was also part of the old Moyer/Neuer farm. The Lutz family lived at the edge of Lehigh County and Berks County near Steinsville, PA.