Mary Neal scholar, Roy Judge, describes in his article 'How Did you Think it Was', how Mary and Emmeline Pethick in their work together 'accepted the gospel of Socialism as it was preached then by Keir Hardie'.
Keir Hardie (1856 – 1915). Keir Hardie was a Scottish socialist and labour leader, and was the first Independent Labour Member of Parliament elected to the Parliament of the United Kingdom. See here for more information.