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 |
|---|---|---|
| Caldewell | 3 | 1488 (cheld); 1489 (cary, courtin) |
| Caldwele | 2 | 1473 (cork); 1474 (buckasie) |
| Caldvall | 1 | 1571 (agu) |
| Caldwall | 1 | 1648 (croft) |
| of Caldwel | 1 | 1495 (dede) |