Does anyone have any information about Bart Van Der Schelling. He was was a Dutch singer who recorded in New York in the 1940's. The following reference is the only useful information I have at the moment about him.

Time Magazine has this from 4th August 1941:

World War II has yet to produce a great song, but last week some of its saddest were heard in the U.S. The League of American Writers produced an album of records ($2.75) called Behind the Barbed Wire—six songs of the French, Spanish, Italian and German anti-Fascists who now rot in the French concentration camps of Gurs, Vernet d'Ariège, Argelès-sur-Mer.

The six songs were recorded in Manhattan by a Netherlands-born fighter in the Spanish Civil War, Bart van der Schelling. He wears his chin in a brace, is called "official singer" for the U.S. survivors of the International Brigades of the Loyalists. Singer van der Schelling is backed by an "Exiles Chorus" directed by Earl Robinson (Ballad for Americans). Some of the songs—the Spanish Joven Guardia, the Italian Guardia Rossa, the German Thaelmann-Bataillon, the French Au Devant de la Vie (music by Soviet Composer Dmitri Shostakovich)—were composed during the Spanish War. Most of them are in rough, plodding march time.