Loans and donations
- Jacek Barski, Petershagen
- Stanisław Budyn, Rector of the Polish Catholic Mission, Hanover
- Union of Poles in Germany, Bochum
- Emanuela Danielewicz, Bochum
- Bartek Fujak, Düsseldorf
- The Consulate General of the Republic of Poland in Cologne
- Instytut Śląski, Opole
- Krzysztof Ingarden, Kraków
- Dr. Ryszard Mroziuk, Polish Catholic Mission, Dortmund
- Wiktor Opiński, Dortmund
- Martin-Opitz-Library, Herne
- Polish Scientific Publishers – Wydawnictwo Naukowe PWN, Warsaw
- Prof. Dr. Jan Rydel, Kraków
- Jürgen Vietig, Kleinmachnow