Willem Derk Janszoon Coops ^{327,468,469,470,471}

  Noted events in his life were:

• Occupation: grondeigenaar.

• Occupation: koopman, fabrikant, wethouder.

• Occupation: Burgemeester van Doetinchem: Doetinchem, Nederland.

• Occupation: Eigenaar steenfabriek "IJsselzicht": Doetinchem, Nederland.

• Occupation: Kaarsen- en oliefabrikant.

• Occupation: Zoutzieder: Doetinchem, Nederland.

Willem married Johanna Maria Evekink, daughter of Peter Evekink and Catharina Greve, about 1795 in Doetinchem, Gelderland, Netherlands. (Johanna Maria Evekink was born on 10 Jul 1771 in Doetinchem, Gelderland, Netherlands, christened on 10 Jul 1771 in Doetinchem, Gelderland, Netherlands and died on 9 Nov 1839 in Doetinchem, Gelderland, Netherlands.)