Allow me to explain again: most countries in the world have two naming systems: official names, and nick names. Notice how 'Richard' becomes 'Dick' in English. If a person has multiple first names, usually the first name is used in official (news) reports. It's not Donald John Trump, but Donald Trump. This happens with most SCs NOT from the Netherlands as well. Ethel May Caterham is not constantly referred to as 'Ethel May,' but simply as 'Ethel'. (Japanese SCs are easiest in this regard - they are only ever given one official first name, and that's it.)

This is NOT how it works in the Netherlands. In the Netherlands there are three naming systems: official names, roepnamen (pronounced 'roopnahmuhn' with a trilled r, would be literally translated to 'call names') and nicknames.

• Official names are only ever used in a few (not even all!) legal documents, and are NEVER EVER used in daily life, not even in more formal situations such as work, in hospital/at the doctor, or likewise. This is what confuses lots of Dutch people whenever they're abroad and can lead to hilarious or even embarrassing situations. Dutch people have been refused to board a flight, because the name they entered when booking is not the name that is shown on their ID card. People have sat for hours in hospital or at the doctor's, because their name was called but they didn't recognise it as it was their official name and not their daily name. People were taken to the police station because they told a police officer their (true!) name and it did not match their name on their ID card - see this article and its comments for more examples.
• Roepnamen are also given at birth, but you won't find them in official documents/legally issued documents. You guys know me as 'Marco,' because that is my roepnaam (pronounced 'roopnahm' with a trilled r). However, if you tried to locate my birth certificate, you'd be unsuccessful, as Marco is a far cry from my official first names (I have more than one). Yet, even in more official situations, people only know me as 'Marco' - my colleagues, for instances, don't know my official first names, nor do I know theirs. At the GP's or the dentist's, too, I would be referred to as 'Marco'. I consider 'Marco' my real name and wouldn't even realise someone tried to talk to me if they called me by my official first names. This goes for all other Duch people to, INCLUDING the oldest of the oldest. Try googling for Dutch SCs using their official names, and you will hardly find any Dutch-based newspaper articles about them. However, use their real names (like 'Siene' instead of 'Johanna Francina') and you will find many more articles. Again, this only goes for Dutch-based sources, as the rest of the world is unfamiliar with how the Dutch system works (and, come to think of it, the Flemish system too).
• Nick names exist in the Netherlands, too. My students refer to me as 'Wikkie' (a shortened version of my last name), both as a term of endearment (they like me...) as well as a means of shortening my long(er) last name. Henny (not Hendrikje!) van Andel-Schipper was known as 'Tante Henny' to show affection.

In short, calling Dutch people's real names "diminutives" is blatantly wrong, only shows a misunderstanding of Dutch culture, and is - quite frankly - highly disrespectful, as you seem to imply you understand Dutch naming conventions better than Dutch people themselves. You also disrespect Dutch supercentenarians and their families, because their official names are not their real names (as paradoxical as that might sound).

Of course, we can also reverse everything and be consistent to a fault. As of now, we are going to refer to ALL SCs from ALL countries in a similar fashion, because if we only use full, official names for Dutch SCs, we should do so for all SCs anywhere and everywhere in the world. In other words, as of now it's as follows:

• Maria Elisabeth Dionysia Waelbers
• Ines Lina Linda Sommovigo
• Ada Ethel Sarah Cleggett
• Angelica Genevieve Mary Wilhelm
• Esther Margreta Louise Groneman
• Ruth Anna Victoria Brown
• Orphea Reca Josephine Mattsfield
• and I could go on and on.

2. Frits Brockhus

4. Theo van Es

10. Jan Fleuren

I'm sorry, but these are not their names. Corrected:

2. Frits Brockhus

4. Theo van Es

10. Jan Fleuren

1. Jan Boerema (Marum, Groningen) (b. 12 January 1919), 107 y.o. Doyen of the Netherlands
2. Fredericus Matheus Brockhus (Zandvoort, North Holland) (b. 18 April 1919), 106 y.o.
3. Roel Groenhoff (Soest, Utrecht) (b. 17 September 1919), 106 y.o.
4. Theodorus Gerardus Henricus Maria van Es (Rotterdam, South Holland) (b. 15 November 1919), 106 y.o.
5. Johannes Damis Donker (Gouda, South Holland) (b. 20 November 1919), 106 y.o.
6. Gerard Hartman (Agelo, Overijssel) (b. 7 January 1920), 106? y.o.
7. Dirk Douma (Amstelveen, North Holland) (b. 14 February 1920), 106? y.o.
8. Kor van Reenen (Honselersdijk, South Holland) (b. 27 February 1920), 106 y.o.
9. Lambert Geert Bartelds (Tweede Exloërmond, Drenthe) (b. 31 March 1920), 106 y.o.
10. Johannes Petrus Maria Fleuren (Nijmegen, Gelderland) (b. 16 June 1920), 105 y.o.

UR. Cornelis Witkam (Rotterdam, South Holland) (b. 26 September 1920), 105 y.o.

Franciscus Johannes Godefridus van Rheenen (12-07-1919 - 15-03-2026) from Amsterdam

but gained

Kor van Reenen (27-02-1920) from Honselersdijk

One unknown man from 1919 probably made it to 2026; he lives either in Meppel or Haarlem .

GJK

1. Jan Boerema (Marum, Groningen) (b. 12 January 1919), 107 y.o. Doyen of the Netherlands
2. Fredericus Matheus Brockhus (Zandvoort, North Holland) (b. 18 April 1919), 106 y.o.
3. Franciscus Johannes Godefridus van Rheenen (Amsterdam, North Holland) (b. 12 July 1919), 106 y.o.
4. Roel Groenhoff (Soest, Utrecht) (b. 17 September 1919), 106 y.o.
5. Theodorus Gerardus Henricus Maria van Es (Rotterdam, South Holland) (b. 15 November 1919), 106 y.o.
6. Johannes Damis Donker (Gouda, South Holland) (b. 20 November 1919), 106 y.o.
7. Gerard Hartman (Agelo, Overijssel) (b. 7 January 1920), 106? y.o.
8. Dirk Douma (Amstelveen, North Holland) (b. 14 February 1920), 105 y.o.
9. Kor van Reenen (Honselersdijk, South Holland) (b. 27 February 1920), 105 y.o.
10. Lambert Geert Bartelds (Tweede Exloërmond, Drenthe) (b. 31 March 1920), 105 y.o.