| primidi | duodi | tridi | quartidi | quintidi | sextidi | septidi | octidi | nonidi | decidi |
| Day not set Jozef Szalatynski Death - May 1965 (63 year anniversary) Zbigniew Szwarc + Private Marriage - May 1953 (75 year anniversary) | 122 April | 223 April | 324 April | 425 April Leopold Grubin Birth - 25 April 1880 (148 year anniversary) | 526 April John Szalatynski Sallan Birth - 26 April 1920 (108 year anniversary) | 627 April | |||
| 728 April Jozef Szalatynski + Katarzyna Stepczuk Marriage - 28 April 1913 (115 year anniversary) | 829 April | 930 April Norbert Kwaśniok + Private Marriage - 30 April 1977 (51 year anniversary) | 101 May Maria Sagan Death - 1 May 1995 (33 year anniversary) Stanisław Biernat Birth - 1 May 1930 (98 year anniversary) Jan Bratkowski Death - 1 May 1879 (149 year anniversary) | 112 May Edward Zapałowicz + Maria Rybak Marriage - 2 May 1931 (97 year anniversary) | 123 May Piotr Rybak Death - 3 May 1967 (61 year anniversary) Eugeniusz Kubik Birth - 3 May 1939 (89 year anniversary) | 134 May Rafal Pieniądz Birth - 4 May 1981 (47 year anniversary) Czesław Gruszka Birth - 4 May 1949 (79 year anniversary) | 145 May | 156 May Irmina Habdas Death - 6 May 1996 (32 year anniversary) Maria Bratkowska Death - 6 May 1879 (149 year anniversary) Stanislaw Bratkowski Birth - 6 May 1809 (219 year anniversary) | 167 May Julia Rybak Birth - 7 May 1908 (120 year anniversary) |
| 178 May | 189 May | 1910 May | 2011 May Anna Rybak Death - 11 May 1979 (49 year anniversary) Katarzyna Władysława Bohaczek Death - 11 May 1955 (73 year anniversary) Rosa Chargaff Birth - 11 May 1878 (150 year anniversary) | 2112 May | 2213 May | 2314 May Gertruda Kozłowska Birth - 14 May 1924 (104 year anniversary) | 2415 May Greta Chargaff Birth - 15 May 1910 (118 year anniversary) | 2516 May Jonas Holzmann Death - 16 May 1959 (69 year anniversary) Henryk Szwarc Birth - 16 May 1944 (84 year anniversary) Zygmunt Trocha Birth - 16 May 1925 (103 year anniversary) | 2617 May Jan Bratkowski Birth - 17 May 1856 (172 year anniversary) |
| 2718 May | 2819 May Jan Szwarc + Władysława Sagan Marriage - 19 May 1929 (99 year anniversary) | 2920 May | 3021 May Felicitas Dingmann Birth - 21 May 1898 (130 year anniversary) |
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