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 |
|---|---|---|
| Cathkert | 2 | 1506 (alienatioun, conjunct) |
| Cathcart | 1 | 1458 (assith) |