University of Maryland Libraries acquired a collection of her work with the Papers of Djuna Barnes in 1973 and subsequently separated von Freytag-Lorninghoven’s papers and treated them as an individual collection. The collection contains correspondences, visual poems, and other artistic/literary works by the artist. The University of Maryland’s Special collections has an extensive digital archive of her manuscripts.
In New York, the Baroness also worked on assemblage sculptures and paintings, creating art out of the rubbish and refuse she collected from the streets. The Baroness was also known to construct elaborate costumes from found objects, creating a “kind of living collage” that erased the boundaries between life and art.