Behind the distinguished façade of the building there is a collection of paintings, drawings, engravings, watercolours and objects, all directly related to this family of painters.

Their works date between 1861 and 1994 in subjects ranging from cityscapes of the old town of 's-Hertogenbosch, village scenes and landscapes of Brabant, the Belgian Campine and southern Europe, to still lifes, flowers and portraits.

[2] The museum also houses furniture and objects from several periods, immersing visitors in the domestic and artistic atmosphere of the late 19th and early 20th centuries.

From 1936 the spacious lower floors of the building accommodated the Openbare Leeszaal en Boekerij op R.K. Grondslag (Public Reading Room and Library on Roman Catholic Principles).

Since 1959 Mr and Mrs Bergé-Slager had been living in the house above the library and had gradually transformed their home into a museum, filling it with paintings by members of the Slager family.

They decided to turn the lower floors into a dedicated museum, and named it after the Slager family as a tribute to its painters, their colleagues and their students.

In 1978 Hein Bergé also bought the adjacent buildings, the former home of the Simons family (mother and sons), from where they once ran both a grocery shop and the famous de Vierkante Meter ('the Square Metre', the tiniest pub in 's-Hertogenbosch, with standing room only).