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 |
|---|---|---|
| Selkirk | 2 | 1502-3 (cultellar); 1587 (consent) |
| Selkirc | 1 | 1425 (chapellane) |
| Selkyrk | 1 | 1502 (dagar) |