19 June 2026
André van Delft found and was able to photograph 'Levensloop' (number 3447 in the bibliography):
11 June 2026
The website of publisher Damon, where Verhoeven published much of his later work, has a beautiful page about him:
https://www.damon.nl/auteurs/cornelis-verhoeven
6 June 2026
Cornelis Verhoeven on Joop Berding's website
Joop Berding is a former teacher, educationalist, and writer, among other things of several books by and about Verhoeven. See also here: http://www.joopberding.com/Verhoeven