| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
| Day not set Jozef Szalatynski Death - May 1965 Zbigniew Szwarc + Private Marriage - May 1953 (12 year anniversary) | 1 Stanisław Biernat Birth - 1 May 1930 (35 year anniversary) Jan Bratkowski Death - 1 May 1879 (86 year anniversary) | |||||
| 2 Edward Zapałowicz + Maria Rybak Marriage - 2 May 1931 (34 year anniversary) | 3 Eugeniusz Kubik Birth - 3 May 1939 (26 year anniversary) | 4 Czesław Gruszka Birth - 4 May 1949 (16 year anniversary) | 5 | 6 Maria Bratkowska Death - 6 May 1879 (86 year anniversary) Stanislaw Bratkowski Birth - 6 May 1809 (156 year anniversary) | 7 Julia Rybak Birth - 7 May 1908 (57 year anniversary) | 8 |
| 9 | 10 | 11 Katarzyna Władysława Bohaczek Death - 11 May 1955 (10 year anniversary) Rosa Chargaff Birth - 11 May 1878 (87 year anniversary) | 12 | 13 | 14 Gertruda Kozłowska Birth - 14 May 1924 (41 year anniversary) | 15 Greta Chargaff Birth - 15 May 1910 (55 year anniversary) |
| 16 Jonas Holzmann Death - 16 May 1959 (6 year anniversary) Henryk Szwarc Birth - 16 May 1944 (21 year anniversary) Zygmunt Trocha Birth - 16 May 1925 (40 year anniversary) | 17 Jan Bratkowski Birth - 17 May 1856 (109 year anniversary) | 18 | 19 Jan Szwarc + Władysława Sagan Marriage - 19 May 1929 (36 year anniversary) | 20 | 21 Felicitas Dingmann Birth - 21 May 1898 (67 year anniversary) | 22 AntoniRybak Birth - 22 May 1871 (94 year anniversary) |
| 23 Kazimierz Smoliński Birth - 23 May 1940 (25 year anniversary) | 24 | 25 | 26 Tekla Libitka Birth - 26 May 1833 (132 year anniversary) | 27 | 28 | 29 |
| 30 | 31 Jan Biernat Birth - 31 May 1897 (68 year anniversary) |
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