Relevant details about your search term "yvon":
Yvonne /ɪˈvɒn/ is a female given name. It is French in origin, and is the female form of Yvon, which is derived from the Germanic name Yves. It is from the Germanic word iv, meaning "yew". Since yew wood was used for bows, Ivo may have been an occupational name meaning "archer".