| Source: | Jondal kommune |
| Page: | Torsnes p. 923, Guttorm Kalvson |
| Citation: | |
| Certainty: | probably |
| Notes: |
| 1 | Guttorm Kalvson (-), farmer, parents: Kalv and Inga Vikingsdatter |
| 2 | Nikolas Guttormson (-), parents: Guttorm Kalvson |
| 3 | Sigurd Guttormson (-after 1329), farmer, parents: Guttorm Kalvson |