Harmanus Diedericus Tjeenk Willink, steenfabrikant, born in Winterswijk on August 22, 1790, died in Zutphen on January 14, 1859, aged 68 years.

Harmanus was married in Zutphen on September 19, 1810, at the age of 20 to
Aleida Maria Colenbrander (aged 19 years), born in Zutphen on February 8, 1791, died there on June 13, 1870, aged 79 years, daughter of Johannes Frederik Colenbrander and Johanna Hendrica Schemkes.

• 1 : Wolterus Everhardus Jonas Tjeenk Willink, boekhandelaar and uitgever, born in Zutphen on July 10, 1816, died in Zwolle on October 1, 1885, aged 69 years.
  Wolterus was married in Enschede on March 26, 1841, at the age of 24 to Judith Geertruid Stroink (aged 20 years), born in Enschede on December 9, 1820, died in Zwolle on September 15, 1862, aged 41 years, daughter of Jurrian Stroink and Geertruid Paschen.