Persons (22 to 46 of 1950)
| Name | Birth (min–max) | Death (min–max) | Related sources | Authored diagrams | |
|---|---|---|---|---|---|
| Alexandre, J. | 1 | 0 | |||
| Almeida, João Paulo A. | 1 | 0 | |||
| Aloni, Maria | 1969 | 1 | 0 | ||
| Alonso de Malpartida, Francisco | 2 | 5 | |||
| Alsted, Johann Heinrich | 1588 | 1638 | 1 | 1 | |
| Alt, Guido | 1 | 3 | |||
| Altenstaig, Johann | 1480 | 1523–1525 | 1 | 2 | |
| Alunni, Charles | 1 | 0 | |||
| Alvarez, Enrique | 1 | 1 | |||
| Amadinus, Ricciardus | 1 | 0 | |||
| Amgoud, Leila | 1972 | 4 | 9 | ||
| Anagnostopoulos, Georgios | 1 | 0 | |||
| Anderson, Alan Ross | 1925 | 1973 | 1 | 11 | |
| Anderson, Gregory | 1 | 0 | |||
| Andreas, Antonius | 1275–1285 | 1320 | 2 | 12 | |
| Andrews, Mark | 1 | 5 | |||
| Anellis, Irving H. | 1946 | 2013 | 2 | 4 | |
| Ángeles Gil, Maria | 1 | 0 | |||
| Angell, R. B. | 1918 | 2010 | 1 | 1 | |
| Anger, Claudia | 1 | 0 | |||
| Anisson, Laurent | 1600 | 1672 | 1 | 0 | |
| Anshelm, Thomas | 1 | 0 | |||
| Antonutti Marfori, Marianna | 1 | 0 | |||
| Apuleius, Lucius | 123–125 | 170–180 | 19 | 20 | |
| Aquinas, Thomas | 1225 | 1274 | 0 | 0 |