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Poland's youngest players during the 1938 season, and their age in years and days on the occasion of their final appearance, starting or coming on as a substitute.
For each player age is measured in days, and in years and days, from their date of birth to the day of their first appearance.
| Player | Age (Y:d) | Age (days) | Match |
|---|---|---|---|
| Ernest Wilimowski | 21:10 | 7681 | 04 Jul 1937v Romania |
| Wilhelm Gora | 21:265 | 7936 | 10 Oct 1937v Latvia |
| Edward Madejski | 22:327 | 8363 | 04 Jul 1937v Romania |
| Ewald Dytko | 22:357 | 8393 | 10 Oct 1937v Latvia |
| Erwin Nyc | 23:111 | 8512 | 12 Sep 1937v Denmark |
| Leonard Piatek | 23:274 | 8675 | 04 Jul 1937v Romania |
| Ryszard Piec I | 23:321 | 8722 | 04 Jul 1937v Romania |
| Gerard Wodarz | 23:328 | 8729 | 04 Jul 1937v Romania |
| Wladyslaw Szczepaniak | 27:46 | 9908 | 04 Jul 1937v Romania |
| Fryderyk Scherfke II | 28:257 | 10484 | 22 May 1938v Republic of Ireland |
| Antoni Galecki | 31:100 | 11423 | 12 Sep 1937v Denmark |