Ot en Sien
The stories are set in Drenthe, which is in the north-eastern part of the Netherlands.  Drenthe was a very poor part of the country, but Ot and Sien live in a nice house and are quite well-off.  They are often seen playing in the garden with their toys which include a wooden horse on wheels and a doll in a dolly’s pushchair.  The cat is often in the picture.  They are also seen at school.