| Deutsch | deu-000 |
| John Langdon-Down | |
| English | eng-000 | John Langdon Down |
| français | fra-000 | John Langdon-Down |
| magyar | hun-000 | John Langdon Down |
| Kurmancî | kmr-000 | John Langdon Down |
| Nederlands | nld-000 | John Langdon Down |
| bokmål | nob-000 | John Langdon Down |
| polski | pol-000 | John Langdon-Down |
| português | por-000 | John Langdon Haydon Down |
| español | spa-000 | John Langdon Haydon Down |
| svenska | swe-000 | John Langdon Down |