What is the author's style in A Lantern in Her Hand by Bess Streeter Aldrich?

The novel is filled with dialogue that is broken and fractured by improper grammar, expressing for the reader the type of language spoken by immigrants from Ireland, Scotland, Germany, and Holland. The novel is also filled with dialogue of a more proper English, a language that is lacking the slang modern novels are not complete without and exploring a grammar that is more formal than that taught in modern English classes.