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 |
|---|---|---|
| Matheson | 1 | 1505-6 (col-heuch) |
| Mathouson | 1 | 1444 (borch) |