Other
Baker, Dessie
1
Balch Institute Center for Immigration Research
2
Brøderbund
4
Derry Youth & Community Workshop
1
Hall, Charles M.
1
J. & J. Cooke (Derry, Northern Ireland)
1
Learning Company
4
Olsson, Nils William, 1909-
1
Pennsylvania German Folklore Society
1
Pennsylvania German Folklore Society Yearbook
1
Tepper, Michael
2
Yoder, Don
1