Usage: English, Dutch, Swedish, Danish, Norwegian, Finnish, Popular CulturePronounced: KAS-pər (English, Dutch), KAS-peh (Swedish), KAS-bu (Danish)Meaning: Variant form of Jasper used in several languages. In Popular Culture, it is the name of a friendly ghost from an American series of cartoons and comic books (beginning 1945).
Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars
https://sursassiala.ch/2015/01/15/familienforschung/
https://nossaistorgia.ch/entries/mwnZw4mVLgr
https://www.portraitarchiv.ch/portrait?page=85