Dijkstra was congratulated by Philips researchers from Eindhoven:

• Ton Kalker
• Frits Schalij
• Marly Roncken
• Ronald Saris
• Kees van Berkel
• Cees Niessen
• Jan Korst
• Emile Aarts
• Thijs Krol
• Hans Vink
• Jan Walhier
• Jeep Kessels
• Berry Schoenmakers
• Robert Brondijk
• Gerard Beerkes
• Eric van Utteren

Any misspellings and recollections are welcome.