| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
| Day not set Zbigniew Szwarc + Private Marriage - May 1953 | 1 Stanisław Biernat Birth - 1 May 1930 (23 year anniversary) Jan Bratkowski Death - 1 May 1879 (74 year anniversary) | 2 Edward Zapałowicz + Maria Rybak Marriage - 2 May 1931 (22 year anniversary) | ||||
| 3 Eugeniusz Kubik Birth - 3 May 1939 (14 year anniversary) | 4 Czesław Gruszka Birth - 4 May 1949 (4 year anniversary) | 5 | 6 Maria Bratkowska Death - 6 May 1879 (74 year anniversary) Stanislaw Bratkowski Birth - 6 May 1809 (144 year anniversary) | 7 Julia Rybak Birth - 7 May 1908 (45 year anniversary) | 8 | 9 |
| 10 | 11 Rosa Chargaff Birth - 11 May 1878 (75 year anniversary) | 12 | 13 | 14 Gertruda Kozłowska Birth - 14 May 1924 (29 year anniversary) | 15 Greta Chargaff Birth - 15 May 1910 (43 year anniversary) | 16 Henryk Szwarc Birth - 16 May 1944 (9 year anniversary) Zygmunt Trocha Birth - 16 May 1925 (28 year anniversary) |
| 17 Jan Bratkowski Birth - 17 May 1856 (97 year anniversary) | 18 | 19 Jan Szwarc + Władysława Sagan Marriage - 19 May 1929 (24 year anniversary) | 20 | 21 Felicitas Dingmann Birth - 21 May 1898 (55 year anniversary) | 22 AntoniRybak Birth - 22 May 1871 (82 year anniversary) | 23 Kazimierz Smoliński Birth - 23 May 1940 (13 year anniversary) |
| 24 | 25 | 26 Tekla Libitka Birth - 26 May 1833 (120 year anniversary) | 27 | 28 | 29 | 30 |
| 31 Jan Biernat Birth - 31 May 1897 (56 year anniversary) |
