The book by Sally McCambridge is about the parish of Andreas, its people and places. The Teare family is just one of many recorded.
The 1851 census for Andreas has Elizabeth Teare with her son John and his family at Ballabane. It indicates that Elizabeth originated from Ballaugh.
The burial register shows she died in Ramsey in 1857 at the age of 73 which puts her birth C 1784. There are a number of possibilities for her parents including Philip Teare and Elizabeth Harrison from Broughjairg Beg, near Ballaugh Village.
Without firmer information you may wish to look at the wills of Elizabeth Teare 1815 film 0106240 and Philip Teare 1824 no. 0106244 to see if Elizabeth is highlighted.