| Source: | The Register of the Privy Seal of Scotland, Second Series, vol VII, 1638-1643 |
| Page: | p. 517-18, no. 113 |
| Citation: | |
| Certainty: | certainly |
| Notes: |
| 1 | Laurence Sinclair of Ustanes (around 1575-), parents: William Sinclair of Ustanes and Elizabeth Sinclair |
| 2 | Matthew Sinclair (-), parents: Laurence Sinclair of Ustanes |