- 1917: unlisted
- 1916: 6 baby girls named Ysobel [debut]
- 1915: unlisted
The inspiration was either (or both?) of two 1916 films featuring characters named Ysobel:
- The Yaqui, released in March of 1916. Ysobel was played by actress Yona Landowska.
- Lieutenant Danny, U.S.A., released in August of 1916. Ysobel was played by actress Enid Markey.
(My guess is that the first film had more influence, both because it was released earlier and because another character name, Modesta, also saw higher usage in 1916.)
The rare spelling “Ysobel” is likely based on the Old Spanish version of the name, Ysabel.
In fact, did you know that the historic Spanish queen we call “Isabella” in English was actually known as “Ysabel” during her lifetime? (And her husband Ferdinand was actually “Fernando.”) Their initials, “F” and “Y,” were featured on the banner that Christopher Columbus created for his 1492 expedition to the New World.
- The Movie Picture World, Mar. 18, 1916: 1847.
- Lossing, Benson J. The Pictorial Field-book of the Revolution. Vol. 1. New York: Harper & Brothers, 1851.