Original sentence: Many Qu'Appelle children of the late 19th and early 20th centuries recounted frightening encounters with angry Cree and Métis, who not unreasonably bore a considerable grudge against white settlers in the Qu'Appelle region.. (Cf references, passim, in Laura Ingalls Wilder's "Little House" books
Edited sentence: (Cf references, passim, in Laura Ingalls Wilder's "Little House" books.Many Qu'Appelle children of the late 19th and early 20th centuries recounted frightening encounters with angry Cree and Métis, who not unreasonably bore a considerable grudge against white settlers in the Qu'Appelle region..