Dortmund entrepreneur who acquired the Their Brewery in 1888, Josef Cremer was also an art collector. A three volume catalogue of his collection was produced c. 1914 with an introduction by Hermann Voss. Records of Cremer's cultural activities are held by the Stiftung Westfälschen Wirtschaftarchiv, S 8/19.
Cremer, Josef and Hermann Voss. Collection Geh. Kommerzienrat Cremer, Dortmund. 3 vols. Dortmund, c. 1914.
Scharf, Alfred. "Der Primitiven der Sammlung Cremer." Cicerone 21 (1929):255-261