The Quaker Bonnet—A Child-Storyby KKKBulletin of Friends' Historical Society of PhiladelphiaBulletin of Friends' Historical Society of Philadelphia1914DOI 10.2307/41944971
Ordinary White Protestants: The KKK of the 1920sReview by: Stanley CobenGeorge Mason University1994DOI 10.2307/3788348
Acta Ophthalmologica Award and the KKK Lundsgaard Prize 2002Anders HeijlActa Ophthalmologica Scandinavica2002DOI 10.1034/j.1600-0420.2002.800603.x
Acta Ophthalmologica Award and the KKK Lundsgaard Prize 2004Anders HeijlJohn Wiley and Sons2004DOI 10.1111/j.1395-3907.2004.00314.x