Like Dew Before The Sun (Life and Language in Northamptonshire) by Dorothy A. Grimes
The book documents the dialect and folklore of the County of Northamptonshire.
Drawn primarily from the oral recollections of people born in the last years of the 19th century and early 20th century, the author provides an affectionate, erudite and insightful commentary.
The title refers to how the phrases and sayings of the past are disappearing as the English language evolves.
In my opinion a great book to have in your personal library for reference use.