Kaczory was formerly part of the German Empire. In the German Empire, the place was called Erpel (Kr. Kolmar, Wartheland).
The place is now called Kaczory and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Erpel (Bz. Bromberg) | German Empire | Kolmar i. Posen | before the Versailles Treaty |
| Kaczory | Poland | Chodzież | after the Versailles Treaty |
| Erpel | German Empire | Kolmar (Wartheland) | 1939 |
| Erpel (Kr. Kolmar, Wartheland) | German Empire | Kolmar (Wartheland) | 1939 |
| Kaczory | Poland | Chodzież | 1945 |
| Kaczory | Poland | Piła | 1992 |