In addition to his parliamentary duties, Churchill wrote a two-volume biography of his father, Lord Randolph Churchill, published in 1906, in which he "presented his father as a tory with increasingly radical sympathies", according to the historian Paul Addison.
Selain tugas-tugas parlementernya, Churchill menulis sebuah biografi berjumlah dua volume tentang ayahnya, Lord Randolph Churchill, yang diterbitkan pada tahun 1906, dimana ia "menggambarkan ayahnya sebagai seorang tory dengan rasa simpati radikal yang meningkat", menurut sejarawan Paul Addison.