Black diamonds : the rise and fall of an english dynasty - Bailey, Catherine (London : Penguin Books, 2008)
References : p. 453-505
Keywords: Fitzwilliam family; Upper class -- England -- History -- 20th century; Coal mines and mining -- England -- Yorkshire -- History -- 20th century; Yorkshire (England) -- Social conditions -- 20th century; England -- Social conditions -- 20th century; England -- Economic conditions -- 20th century