Familj: Set Einar Petersson / Greta Astrid Ringström Karlsson (F501877)
v. 23 Dec 1933 | August Emil Karlsson (1879- ) |
 | Anna Vilhelmina Ringström Karlsson (1880-1958) 
|
| Emil Gunnar Ringström Karlsson (1907- ) |
| Gerhard Torgny Ringström Karlsson (1909- )  |
| Set Einar Petersson (1902- ) |
| Greta Astrid Ringström Karlsson (1905- )
|