Over het geslacht Theelen en aanverwante families (Weusten, Beckers, Stiels, Michiels, Jacobs, Beeken, Rutten, Raskop, Lemmens, Elissen, Curvers). Hasselt 1969, 100 p., geïll.

Archives of the cotton mill ‘De Coster & Rousseau’ in Gent (Belgium), ca. 1850-1962. Large box with manuscripts, letters, financial documents, brochures, price lists, etc. concerning this firm, located at the Place des Chartreux 11 in Gent.