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 |
|---|---|---|
| Lausoun | 3 | 1531 (colȝear); 1543-4 (colȝear); 1564 (analier) |
| Lawsoun | 2 | 1470 (brig-); 1540 (colȝear) |
| Lausone | 1 | 1521 (contra) |
| Lawson | 1 | 1513 (bowspleit) |
| Lawsone | 1 | 1586 (cautioner) |
| Louson | 1 | 1474 (aucht) |
| Lowson | 1 | 1583 (closet) |
| Lowsone | 1 | 1576 (bak-sid) |