Quirinus Harder
# Quirinus Harder

Quirinus Johan Harder (13 October 1801, in Rotterdam – 21 October 1880, in Vlissingen) was a Dutch architect best known for having designed a large number of lighthouses. He worked as a structural engineer for the Loodswezen, the Dutch organization overseeing all maritime pilots. Harder's lighthouses were made of cast iron, a new material at the time, which allowed for segmented fabrication and construction.

## List of Harder's lighthouses

* Eierland Lighthouse (Texel, 1864)
* Nieuwe Sluis (1867)
* Scheveningen Lighthouse (1875)
* Short lighthouse of Westkapelle (1875)
* Lange Jaap (Den Helder, 1877-1878)
* Lage vuurtoren van IJmuiden (1878)
* Hoge vuurtoren van IJmuiden (1878)
* Bornrif (Ameland, 1880-1881)
* Den Oever Lighthouse (1884)
* Stavoren Lighthouse (1884)
* Vuurduin (Vlieland, 1909)
