The following information is taken from the Dictionary of the Older Scottish Tongue, available online at http://www.dsl.ac.uk/index.html. This is a work in progress.
| Spelling | Number | Dates & headers |
|---|---|---|
| Watsoun | 6 | 1577 (coldoch); 1578 (buklar); 1583 (bark hole); 1602 (bucht); 1612 (bangstrie) |
| Watsone | 5 | 1555 (clour); 1579 (citisinar); 1601 (coupar, dauchter); 1631 (dede) |
| Watson | 3 | 1474 (aucht); 1590 (dams); 1640 (correctioun) |
| Watsoune | 1 | 1622 (dagmaker) |