My father's siblings:

• Cornelis Godefridus (father)
• Louise Johanna (aunt)
• Johannes Hendrik (uncle)

My grandmother's siblings:

• Johanna Maria Carolina (grandmother)
• Maria Hendrika
• Aloysius Hendrikus Franciscus
• Hendrika Wilhelmina
• Louisa Gerarda Antonia
• Eleonora Henriëtte Louise Johanna

My grandfather's siblings:

• Godefridus Hubertus (grandfather)
• Cornelis Godefridus
• Johanna Cornelia

My grandmother's parents:

• Louise Johanna
• Johannes Hendrik

My grandfather's parents:

• Catharina Petronella
• Cornelis Godefridus