| primidi | duodi | tridi | quartidi | quintidi | sextidi | septidi | octidi | nonidi | decidi |
| Day not set Jozef Szalatynski Death - May 1965 (51 year anniversary) | 122 April | 223 April | 324 April | 425 April Leopold Grubin Birth - 25 April 1880 (136 year anniversary) | 526 April John Szalatynski Sallan Birth - 26 April 1920 (96 year anniversary) | 627 April | 728 April | 829 April | 930 April |
| 101 May Stanisław Biernat Birth - 1 May 1930 (86 year anniversary) Jan Bratkowski Death - 1 May 1879 (137 year anniversary) | 112 May | 123 May Piotr Rybak Death - 3 May 1967 (49 year anniversary) Eugeniusz Kubik Birth - 3 May 1939 (77 year anniversary) | 134 May Rafal Pieniądz Birth - 4 May 1981 (35 year anniversary) Czesław Gruszka Birth - 4 May 1949 (67 year anniversary) | 145 May | 156 May Stanislaw Bratkowski Birth - 6 May 1809 (207 year anniversary) | 167 May | 178 May | 189 May | 1910 May |
| 2011 May | 2112 May | 2213 May | 2314 May | 2415 May | 2516 May Jonas Holzmann Death - 16 May 1959 (57 year anniversary) Henryk Szwarc Birth - 16 May 1944 (72 year anniversary) Zygmunt Trocha Birth - 16 May 1925 (91 year anniversary) | 2617 May Jan Bratkowski Birth - 17 May 1856 (160 year anniversary) | 2718 May | 2819 May | 2920 May |
| 3021 May |
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