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 |
|---|---|---|
| Richardsone | 1 | 1628 (cape) |
| Richartsoun | 1 | 1558 (chekker hous) |
| Richertsoun | 1 | 1540 (complice) |
| Rychartson | 1 | 1531 (chaplan) |