The Mario Ancona collection was created by his son Giacomo Ancona. It was mainly organized in scrapbooks, some bound, others with loose leaves boxed together. The materials gathered range from as early as 1792 with an Ancona family document, to as late as the 1970s with Giacomo Ancona₂s correspondence. The primary languages represented are Italian and English. Of particular interest are the three oversize portfolios entitled 1. Mario Ancona, 2. Musical Artists and 3. Royalty, Composers, Conductors, Comedians, Virtuosi, Famous People, and Students which contain photographs and documents mounted on poster board. The selection of photographs ranges from autographed portraits of opera singers and composers to members of royalty. Further items include original art work, concert and opera announcements, and honorary documents. Beyond the scrapbooks and portfolios are two volumes of autographed vocal scores entitled Romanze; opera publications; discographies and musical recordings which include 5 reel to reel tapes, 19 non-commercial discs, 17 commercial discs and 2 damaged cylinders. Filed separately is the Giacomo Ancona correspondence documenting the searches for materials pertaining to his father.