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 |
|---|---|---|
| of Gledstanis | 2 | 1488 (conquest); 1518 (apperand) |
| Gledstan | 1 | 1555 (bede-) |
| Gledstanis | 1 | 1557 (complice) |