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 |
|---|---|---|
| Leslie | 7 | 1496 (bon-acord, conjunctioun); 1546 (cursing); 1597 (apprehend); 1598 (cosin); 1604 (chanounrie); 1627 (count) |
| Leslye | 2 | 1542 (copper); 1591-2 (bell) |
| Lesley | 1 | 1649 (dar) |
| Lesly | 1 | 1624 (clath) |