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 |
|---|---|---|
| Wischert | 7 | 1563 (compt); 1596 (art, brin); 1597 (command); 1602 (curch); 1604 (bland) |
| Wischart | 2 | 1524 (credence); 1544 (cognosce) |
| Wishart | 1 | 1493 (complet) |