Individual Details
Issac Ilmar Mattson
(26 Oct 1905 - )
Events
| Birth | 26 Oct 1905 |
Families
| Father | Johan Heikkinen Tjader Mehtonen (1869 - 1955) |
| Mother | Reeta Nee Erkintytar Heikkinen (1868 - 1921) |
| Sibling | Otto Aleksander Tjader (1891 - 1960) |
| Sibling | Sofia Elisabeth Tjader Mehtonen (1899 - 1901) |
| Sibling | Matti Valdemar Tjader Mehtonen (Mattson) (1901 - ) |
| Sibling | Anna Mattson (1902 - 1943) |
| Sibling | Jacob Mattson (1904 - 1985) |
| Sibling | Aina Alice Mattson (1907 - ) |