| Father | Michael Nicholas Maciejewski (born 1830, died 8 February 1895) |
| Mother | Katarzvna Catherine Lamieska (born 1837, died 6 April 1913) |
| Pedigree Link |
| Son | Walter Joseph Jonas (born 26 April 1904) |
| Daughter | Margaret Cicella Jonas (born 10 September 1905) |
| Daughter | Genevieve Jonas (born 21 February 1910) |
| Daughter | Mary Catherine Jonas (born 25 May 1913) |
| Daughter | Agnes Helen Jonas (born 25 May 1913) |
| Daughter | Catherine Magdaline Jonas (born 20 July 1914) |
| Son | Morris Jonas (born 21 September 1915) |
| Son | John James Jonas (born 29 October 1917) |
| Daughter | Virgil Gertrude Ann Jonas (born 6 June 1919) |
| Son | Lawrence Adrian Larry Jonas (born 5 March 1921) |
| Daughter | Rose Ann Elizabeth Jonas (born 27 January 1922) |
| Daughter | Evelyn Dorothy Jonas (born 12 September 1926) |