The Setons

Popular novel first published in 1917. According to Wikipedia: "O. Douglas is the pen name of Anna Masterton Buchan (1877–1948), a Scottish novelist. She was born in Perth, Scotland, the daughter of the Reverend John Buchan and Helen Masterton. She was the younger sister of John Buchan, the renowned statesman and author. She attended Hutchesons' Grammar School in Glasgow, but lived most of her later life in Broughton, Peeblesshire, where her parents first met. Her first novel Olivia in India was published in 1912 by Hodder & Stoughton. Most of her novels were written and set between the wars, and portrayed small town or village life in southern Scotland, reflecting her own life."