Royal Netherlands Academy of Arts and Science. Retrieved 3 May 2020. "B. Faddegon", KNAW Historisch Ledenbestand (Digitaal Wetenschapshistorisch Centrum)... 20 KB (1,160 words) - 19:16, 28 March 2022 |
 | Duijs Jan Eisenloeffel Harm Ellens Johanna van Eybergen Charles Eyck M A Faddegon Emile Feet Hildegard Brom-Fischer Chris van Geel Roelof Gerbrands Jaap... 13 KB (1,008 words) - 14:15, 10 November 2023 |