 | US Census 1910: Jacob Syputa 23.04.1910 |
| US Census 1910: Mike, John Plaza 23.04.1910 |
| US Census 1920: Henrietta Plaza 03.02.1920 |
| US Census 1920: Jacob Syputa 02.02.1920 |
| US Census 1920: Mike Plaza 05.02.1920 |
| US Census 1930: Frank Plaza 10.04.1930 Wisconsin |
| US Census 1930: Jacob Syputa 30.04.1930 |
| US Census 1930: Philip Syputa Sr 03.05.1930 Chicago |