For more information on Nathan Alexanders newes publication „Race in a Godless World: Atheism, Race, and Civilization, 1850-1914“ please check the following link:
http://www.manchesteruniversitypress.co.uk/9781526142375/
We would also like to draw your attention to one of Nathan Alexanders articles: „An Atheist with a Tall Hat On: The Forgotten History of Agnosticism“: https://thehumanist.com/magazine/march-april-2019/philosophically-speaking/philosophically-speaking-an-atheist-with-a-tall-hat-on-the-forgotten-history-of-agnosticism