Ida Cook was born at 37 Croft Avenue, Sunderland. Together with her sister (Mary) Louise Cook (1901-1991), she rescued Jews from the Nazis during the 1930s. In 1965 the sisters were honoured for their rescue work and named among the 'Righteous Gentiles' in Jerusalem, thus joining Oskar Schindler among others.

Ida Cook wrote over a hundred romance novels, many of which were translated. She helped to found and was for many years president of the Romantic Novelist's Association.