Bloxham. The Great Game of Genocide, p. 210. "Some of McCarthy's work considers the great population changes of the period, including extensive examination of the expulsion of Muslims from the new Balkan states and the overall demographic catastrophes of 1912–23... McCarthy's work has something to offer in drawing attention to the oft-unheeded history of Muslim suffering and embattlement that shaped the mindset of the perpetrators of 1915. It also shows that vicious ethnic nationalism was by no means the sole preserve of the Committee of Union and Progress and its successors."
Beachler, Donald W. (2011). The genocide debate: politicians, academics, and victims. Palgrave Macmillan. p. 123. ISBN978-0-230-33763-3. "Justin McCarthy has, along with other historians, provided a necessary corrective to much of the history produced by scholars of the Armenian genocide in the United States. McCarthy demonstrates that not all of the ethnic cleansing and ethnic killing in the Ottoman Empire in the late nineteenth and early twentieth centuries followed the model often posited in the West, whereby all the victims were Christian and all the perpetrators were Muslim. McCarthy has shown that there were mass killings of Muslims and deportations of millions of Muslims from the Balkans and the Caucasus over the course of the nineteenth and early twentieth centuries. McCarthy, who is labeled (correctly in this author's estimation) as being pro-Turkish by some writers and is a denier of the so called Armenian genocide claims with Dr Ömer Turan and Prof Dr Cemalettin Taşkıran, has estimated that about 5.5 million Muslims were killed in the hundred years from 1821–1922. Several million more refugees poured out of the Balkans and Russian conquered areas, forming a large refugee (muhajir) community in Istanbul and Anatolia."
Mann, Michael (2005). The dark side of democracy: explaining ethnic cleansing. Cambridge University Press. p. 113. ISBN0521538548. "In the Balkans all statistics of death remain contested. Most of the following figures derive from McCarthy (1995: 1, 91, 161-4, 339), who is often viewed as a scholar on the Turkish side of the debate. Yet even if we reduced his figures by as much as 50 percent, they would still horrify. He estimates that between 1811 and 1912, somewhere around 5 1/2 million Muslims were driven out of Europe and million more were killed or died of disease or starvation while fleeing. Cleansing resulted from Serbian and Greek independence in the 1820s and 1830s, from Bulgarian independence in 1877, and from the Balkan wars culminating in 1912."