The following surnames appear in the KLOOS Genealogy
| CLOOS | FELDMANN | LEIDREITER | SCHRIJVERS |
| KLOOS | FRANTZEN | LELAND | SCHRöDER |
| ADRIAANSEN | GENEVé | LIEVERS | SERTORI |
| AMELSE | GöTZINGER | MANUNZA | SMIRNOFF |
| ANDRÉ | GRANT | MARCHESE | STELLING |
| BALTHAZAR | HARBERS | MITGAU | STURM |
| BARTHèZE | HARTMAN | MOOLENAAR | TAPONNIER |
| BOON | HESSELINK | MULDER | TUYN |
| BORGERHOFF v.d. BERGH | HEWLETT | NAEF | VALKENBURG |
| CAMERON | HOFMAN | ODENKIRCHEN | VAN DOORN |
| DE VAL | JOLLY | OHR | V. d. KNAAP |
| DIJKMAN | KABETA | PESSELSEN | WIGMAN |
| DIXON | KEMNA | POSTMA | ZUUR |
| EBALE | KOBOLD | ROSEER | |
| ELBERTZE | KOHLENBERG | REYNEKE VAN STüWE | |
| ENGEL | LAJAINE | SCHERF | |
| ESKENS | LAUGIER DE TASSY | SCHOUTEN |
Enquiries welcome at: jan.kloos@ties.itu.int