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DEATH ANNOUNCEMENT

ANNELIES JOHANNA DE KOCK

“Lies”

14 February 1980 – 12 November 2024

Delft

TU Delft coastal engineer, mother of two and the colleague who made every meeting kinder

Annelies de Kock had a rule for meetings: if nobody has laughed in the first ten minutes, somebody has to be told off. She rarely had to enforce it, because she was usually the one laughing, a loud, unguarded laugh that carried down the corridors of the Faculty of Civil Engineering at TU Delft.

She was born in Eindhoven in 1980, the daughter of a Philips engineer and a primary school teacher, and grew up with a father who told stories about a country on the other side of the world. She studied civil engineering at TU Delft, took her master's in hydraulic engineering in 2004 and a doctorate in 2009 on how storm surges behave when they meet a river delta. Her work at Deltares and TU Delft helped the Netherlands, and later Indonesia, think about living with water instead of against it. In 2012 she travelled to Bandung and Jakarta with her father, to see the city of his childhood and a coastline that was sinking.

As a supervisor she was demanding and kind in equal parts. She read every draft within forty-eight hours and once drove a doctoral candidate to hospital herself before returning to finish the seminar. She became associate professor in 2019. Colleagues remember her skates in the corner of her office, her habit of explaining difficult things with a coffee cup and a spoon, and the afternoon she built a dike out of cutlery to make a point to a visiting minister.

In 2013 she married Maarten van Gelder, whom she had met on a rowing trip, and they had Jip in 2017 and Sanne in 2020. She played field hockey on Sunday mornings, skated on natural ice on the few days a decade that the canals froze properly, and sang, badly and joyfully, in the shower and the car.

Annelies died on 12 November 2024 at home in Delft, after a short illness faced with the same honesty she brought to everything, with Maarten and the children beside her. She leaves Maarten, Jip, Sanne, her mother Truus, her brother Rob, and a great many people whose work and lives she made a little lighter.

“If nobody has laughed in the first ten minutes, something is wrong.”

Funeral arrangements

Service
Celebration of Life
Date & time
East Africa Time (Nairobi)
Venue
Aula Conference Centre, TU Delft
Address
Mekelweg 5, 2628 CC Delft
Resting place
Jaffa Cemetery, Delft

Funeral committees

Family committee

Coordinating the arrangements and supporting Annelies's family.

  • chair: Maarten van Gelder
  • secretary: Pieter van Dijk
  • treasurer: Prof. Han Vermeulen

Contact: Maarten van Gelder

Meetings: Daily at the family home, Delft, 5pm

≈ KES 121,325 raised of ≈ KES 206,400

View committee & updates ›

TU Delft alumni

  • chair: Dr Sophie Baan
  • secretary: Pieter van Dijk
  • treasurer: Marlien Oosthuizen-Kruger

Contact: Dr Sophie Baan

Meetings: Online every Tuesday, 8pm

≈ KES 56,986 raised of ≈ KES 70,950

View committee & updates ›

Contributions · Fund for Jip and Sanne

≈ KES 672,800 raised of ≈ KES 1,032,000

Support for Maarten and the children, with any surplus funding a travel grant in Annelies's name for young coastal-engineering researchers.

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The form below uses USD. $10 ≈ KES 1,290; $25 ≈ KES 3,225. Your checkout shows the amount before you pay.

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Survived by

  • Spouse: Maarten van Gelder
  • Son: Jip van Gelder
  • Daughter: Sanne van Gelder
  • Mother: Truus de Kock-Smits
  • Brother: Rob de Kock

Life journey

  1. 1998–2004MSc in Civil Engineering (Hydraulic Engineering) · TU Delft · Delft

    Graduated cum laude with a thesis on tidal inlets.

  2. 2004–2009PhD in Coastal Engineering · TU Delft · Delft

    Thesis on storm surges in river deltas.

  3. 2009–2014Researcher and flood-risk adviser · Deltares · Delft

    Advised on delta programmes in the Netherlands and Indonesia.

  4. 2013Married Maarten van Gelder · Delft

    Eleven years of marriage and two children.

  5. 2014–2024Assistant, then Associate Professor of Coastal Engineering · TU Delft · Delft

    Supervised eleven PhD students from seven countries.

  6. 2018–2024Volunteer junior coach · Delft hockey club · Delft

    Coached Saturday-morning hockey for eight-year-olds.

  7. 2016Young Engineer Award · Royal Netherlands Society of Engineers (KIVI) · The Hague

    For research on delta flood protection.

Condolence messages (6)

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Dr Sophie Baan

Colleague at Deltares

She made young researchers feel like colleagues from their first day. Her own work will outlast her by decades: the models she built are being used in Rotterdam and Jakarta right now, quietly keeping water where it belongs. That is a very Annelies sort of immortality.

Tim Hendriks

Hockey teammate

She was the worst striker our team has ever had and the best captain. She tackled with her whole heart, apologised in the same breath, and ran the post-match cake rota like a naval campaign. We will play on Sunday in her number. It's fourteen.

Pieter van Dijk

Her father's old colleague at Philips

I last saw Annelies at her father's funeral, three years ago, when she gave the speech. She said her father taught her that curiosity is a form of courage. The room went silent. I thought: that is exactly right, and she is exactly the person to say it.

Putri Wulandari

PhD student from Jakarta

When I arrived in Delft knowing nobody, Annelies invited me to Sunday lunch. She cooked rendang from her father's recipe book. 'It's not very good,' she said. It was wonderful. She told me my country's coastline was the most important problem in her field and that she would help for as long as I needed. She did.

Marieke de Boer

Friend since primary school in Eindhoven

Lies and I met at six, arguing over a swing. We never stopped arguing and we never stopped being friends, which is the secret of both. On the day she died I went to the swing in the park and sat on it for an hour. She would have called that sentimental. She would have been right.

Prof. Han Vermeulen

Head of department, TU Delft

Annelies brought two cups to every meeting, one for herself and one for the person who looked most tired. She did not think of it as kindness. She thought of it as good engineering: people think better when they are warm. I shall hold the next meeting with two cups.