| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
| 122 April | 223 April | 324 April | 425 April Leopold Grubin Birth - 25 April 1880 (67 year anniversary) | 526 April John Szalatynski Sallan Birth - 26 April 1920 (27 year anniversary) | ||
| 627 April | 728 April Jozef Szalatynski + Katarzyna Stepczuk Marriage - 28 April 1913 (34 year anniversary) | 829 April | 930 April | 101 May Stanisław Biernat Birth - 1 May 1930 (17 year anniversary) Jan Bratkowski Death - 1 May 1879 (68 year anniversary) | 112 May Edward Zapałowicz + Maria Rybak Marriage - 2 May 1931 (16 year anniversary) | 123 May Eugeniusz Kubik Birth - 3 May 1939 (8 year anniversary) |
| 134 May | 145 May | 156 May Maria Bratkowska Death - 6 May 1879 (68 year anniversary) Stanislaw Bratkowski Birth - 6 May 1809 (138 year anniversary) | 167 May Julia Rybak Birth - 7 May 1908 (39 year anniversary) | 178 May | 189 May | 1910 May |
| 2011 May Rosa Chargaff Birth - 11 May 1878 (69 year anniversary) | 2112 May | 2213 May | 2314 May Gertruda Kozłowska Birth - 14 May 1924 (23 year anniversary) | 2415 May Greta Chargaff Birth - 15 May 1910 (37 year anniversary) | 2516 May Henryk Szwarc Birth - 16 May 1944 (3 year anniversary) Zygmunt Trocha Birth - 16 May 1925 (22 year anniversary) | 2617 May Jan Bratkowski Birth - 17 May 1856 (91 year anniversary) |
| 2718 May | 2819 May Jan Szwarc + Władysława Sagan Marriage - 19 May 1929 (18 year anniversary) | 2920 May |
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