1. (ASN) Archivio di Stato di Napoli [Naples’ State Archive, Italy]:
2. (AP) Administrative Prefecture, Headquarter, Naples’ Prefecture, General Affairs, year 1866: Bundle 618 and Bundle 620.
3. (AP) Administrative Prefecture, Headquarter, Naples’ Prefecture, General Affairs, year 1884: Bundle 3523.
4. (AP) Administrative Prefecture, Headquarter, Naples’ Prefecture, General Affairs, years 1889–1890: Bundle 4236.
5. Letter of the Italian Provincial Hygiene and Prophylaxis Laboratory n. 48548;