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 | 
|---|---|---|
| Kirkwall | 3 | 1586 (croce); 1594 (bakband); 1629 (boisman) | 
| Kirkwaw | 1 | 1455 (chapter) |