Dora van der Meiden Coolsma

Theodora Hermina "Dora" van der Meiden-Coolsma (1918–2001) was a Dutch columnist and the writer of 23 children's books, also under the pen name Constanze Hazelager. Seven of these books were written together with Coos Covens.

As the daughter, wife, and sister of Dutch Reformed ministers, and the granddaughter of the missionary Sierk Coolsma, many of her stories were on Christian topics. Some books were set in Suriname where she had lived during the years 1951-1955. From Suriname, she wrote columns for the daily newspapers Nieuwsblad van het Noorden and the Nieuwe Rotterdamsche Courant.

Dora Coolsma married ds. J.A. van der Meiden on 1 July 1940. They had four children, among whom historian and translator Pim van der Meiden.