**Arthur D. Graeff**
**Definition:**
Arthur D. Graeff (1899–1983) was an American historian, writer, and educator known for his extensive work on Pennsylvania German culture and Czytaj dalej
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**Arthur D. Graeff**
**Definition:**
Arthur D. Graeff (1899–1983) was an American historian, writer, and educator known for his extensive work on Pennsylvania German culture and Czytaj dalej