If you see multiple siblings with the same name, the first one probably died before the next one was born. Dutch parents typically named their children after relatives. By giving the new child the name of the deceased sibling, both the deceased sibling and the relative that that sibling had been named after were commemorated.
There is one exception: If both grandfathers or grandmothers had the same name, in rare cases they are both named after, leading to two children of the same parents with the same name. Often, they will get different call names, or one will get a suffix like ‘the younger.’
Example: family of Martinus Trouw and Petronella Oomen
A good example of same-named siblings is the family of Martinus Trouw and Petronella Oomen, who lived in Etten-Leur, Noord-Brabant in the 1860s. Their daughter Catharina, born in 1862, died in February 1865. The next daugher, born in July 1865, was also called Catharina. Likewise, they had a son Adriaan, born in 1863 who died in March 1865. A new son Adriaan was born to them in 1867. The younger Catharina and Adriaan lived to adulthood, married and had children.
- Etten-Leur, population register 1860-1869, district G p. 36, household of Martinus Trouw; “Voorouders,” index and digital image, Regionaal Archief West-Brabant (http://www.regionaalarchiefwestbrabant.nl : accessed 24 May 2014).