| John Plaza and Anna Plaza were both the same age |
| Mary Plaza was | 8 days | older than Edward Sobieski |
| John Kurpiel was | 1 month | older than Angeline Kurpiel |
| Irma Polgar was | 3 months | older than Frank Plaza |
| Regina Blaskowski was | 5 months | older than Edwin Kulpinski |
| Jan Ziółkowski was | 1 year | older than Katarzyna Ziółkowska |
| Joseph Plaza was | 1 year | older than Catherine Plaza |
| Caroline Pietrsiak was | 1 year | older than John Plaza |
| Joseph Plaza was | 1 year | older than Rose Plaza |
| Geneva Plaza was | 1 year | older than Joseph Cerjak |
| Fredric Hanvelt was | 1 year | older than Mae Hanvelt |
| Peter Plaza was | 2 years | older than Mary Plaza |
| Peter Plaza was | 2 years | older than Dominica Garski |
| Frank Plaza was | 2 years | older than Sally Plaza |
| Michael Plaza was | 2 years | older than Viola Plaza |
| Regina Blaskowski was | 2 years | older than Francis Plaza |
| Emil Plaza was | 3 years | older than Cleme Plaza |
| Marie Plaza was | 3 years | older than Alfred Wendt |
| Anthony Plaza was | 3 years | older than Agnes Plaza |
| Frances Plaza was | 4 years | older than Steve Uhren |
| Ludwig Boron was | 6 years | older than Helen Boron |
| Stanley Plaza was | 6 years | older than Helen Plaza |
| Edward Plaza was | 7 years | older than Marjorie Plaza |
| Edward Hanvelt was | 8 years | older than Ann Hanvelt |
| Nickolai Runnheim was | 8 years | older than Katherine Runnheim |
| Michael Plaza was | 9 years | older than Henrietta Plaza |
| Dominica Garski was | 12 years | older than Norvel Rixie |
