An archive consisting of 19 folders of documents and 12 of correspondence covering the 19th and 20th centuries and regarding various members of the Bianca family and persons related to the same was certified as possessing historical interest on 8 October 2003 by the Archival Superintendency for Sicily. In addition to material primarily concerned with the family’s property, the archive also includes the correspondence of the naturalist and botanist Giuseppe Bianca (Avola, 1801-83), known for his scientific study of aspects and problems of flora in the district of Avola (Noto). In accordance with the methods used by naturalists at the time, his published treatise Flora dei dintorni di Avola (Catania 1840) opens with a topographical description of the area so as to highlight the close relationship between botanical study and the habitat.

Giuseppe Bianca was not only a botanist but also a competent agronomist and published monographic studies on the almond and carob trees as well as an essay on the agrarian situation in Avola revealing his close involvement in the economic and social life of the area.