| Source: | The County Families of the Zetland Islands |
| Page: | Bruce of Sumburgh no. VI, p. 33 |
| Citation: | |
| Certainty: | probably |
| Notes: |
| 1 | Elizabeth Crichton (-), parents: George Crichton |
| 2 | George Crichton (-) |
| 3 | Laurence Bruce of Sumburgh (-1737), parents: Robert Bruce of Sumburgh and Barbara Stewart |