Dr. Heinemann was an author, art collector, and international art dealer instrumental in developing the Thyssen Museum in Lugano, for whom he edited a catalog, published in 1969. He also arranged the loan of Italian art treasures to the Golden Gate international exhibition held in San Francisco in 1939. Dr. Heinemann, who died Feb. 7, 1975, also had a connection with the Frick Collection. He had a role in the Collection's acquisition of Claude Lorrain's "The Sermon on the Mount" and Piero della Francesca's 'St. Simon the Apostle ." His widow, Lore, continued to add to the library until her own death in 1997.
From the description of Library of Rudolf J. Heinemann. 1767-1997, bulk 1900-1975. (Unknown). WorldCat record id: 78085843