Hummer was formerly part of the German Empire. In the German Empire, the place was called Hummer.
The place is now called Jeziory Małe * and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Hummer | German Empire | Schroda | before the Versailles Treaty |
| Doliwiec Leśny | Poland | Środa | after the Versailles Treaty |
| Hummer | German Empire | Schroda | 1939 |
| Doliwiec | Poland | Środa | 1945 |
| Jeziory Małe * | Poland | Poznań | 1992 |