The Karel B. Absolon Collection is comprised of Absolon family papers and Karel B. Absolon's research and collecting interest, particularly Theodor Billroth. The papers relating to Absolon's family span three generations and include Karel B. Absolon, Karel Absolon, Willibald Absolon, and Jaroslav Bakes (a cousin to Karel Absolon). Karel B. Absolon's primary research interest was Austrian abdominal surgeon Theodor Billroth (1829-1894). Absolon also collected items related to European, primarily men, in the science field. The collection includes correspondence, translations, prints, photographs, articles, ephemera, and original documents.