"Dewachter" stores were still operating in 2019. The stores in Montpelier were still using the Dewachter trade name but had no apparent connection to the founding family. The 1895 founding date promoted on the 2019 website may have been the date the Montpelier Maison Dewachter location originally opened.
Wikimonde article on Olivier Salazar-Ferrer, great-grandson of Henri Dommartin (in French) Henri Dommartin was the son of Jean d'Ardenne, pseudonym of Léon Dommartin (1839-1919), author of literary chronicles and travel stories, defender of Baudelaire in the Belgian press, editor of the daily La Chronique, art critic and pioneer in protecting Belgian landscapes against industrialization and urbanization at the end of 19th and beginning of the 20th centuries.