From June 22 to September 22, 2022, the Maison du docteur Gachet presents the first retrospective of Blanche Derousse (1873-1911), a woman artist close to the Gachet family. The exhibition features 12 reproductions of watercolours preserved in the Musée d'Orsay, 12 reproductions of strong waters from the Bibliothèque nationale de France, a print from the Tavet de Pontoise museum and one from the Daubigny d'Auvers museum, with 6 drawings and prints from the collection of the Departmental Council of Val-d'Oise and 12 works from private collections. Blanche Derousse is the daughter of a pianist and an amateur painter, accountant by trade, close to Doctor Gachet. Introduced by Camille Pissarro to the impressionists he cared for and with whom he practiced engraving, the doctor has built up a remarkable collection of paintings of which he dreams of drawing the catalogue by illustrating it with copies. Blanche is 20 years old when he recruits her as a student alongside his son Paul Louis Gachet, to realize this Great Work. Fascinated by the paintings hung on the walls of the house – thirteen Pissarro, two Renoir, a Monet, a Sisley, thirty Cézanne and as many Van Gogh – she learned drawing, watercolour, oil painting and engraving, multiplied the copies by varying the techniques: A squatting woman, her first etching at the Salon de Pontoise in 1898 was inspired by a sandstone by François-Rupert Carabin (1862-1932). The young woman exhibited at the Salon des Indépendants from 1903. In addition to the work she did for her mentor, she sent original works composed freely or according to nature. Considered during her lifetime as an artist in her own right attached to «a clear, independent, impressionist school», Blanche Derousse, who disappeared in 1911, was forgotten in the history of art: her name reappeared only in 1999 through an exhibition at the Grand Palais, A friend of Cézanne and Van Gogh, Doctor Gachet.