Brief van Marc Emants aan Jacobus van Looy CreatorMarc EmantsDate of creation3 maart 1907CollectionCorrespondence of the writer and painter Jacobus van Looy
Brief van Margaretha Leenmans aan Menno ter Braak CreatorLeenmans, MargarethaCollectionMenno ter Braak
Brief van Margrete Sadolin aan Nynke van Hichtum CreatorSadolin, MargreteDate of creation17-05-1930CollectionNynke van Hichtum, writer of children’s books in Dutch and Frisian