As word of the massacre spread, "elements of what happened were exaggerated, tweaked and fabricated". People who heard about the massacre gave a range of death tolls, from 68 to 196. As Clarke was a witness of the massacre his figure of 100 is taken as being the most credible. Nevertheless, the Portadown massacre was one of the bloodiest in Ireland during the conflicts of the 1640s. About 4,000 Protestant settlers were killed in Ulster in the early months of the rebellion. In County Armagh, recent research has shown that about 1,250 Protestants were killed, about a quarter of the settler population there. In County Tyrone, modern research has identified three blackspots for the killing of settlers, with the worst being near Kinard, "where most of the British families planted ... were ultimately murdered". There were also massacres of local Catholics, such as at Islandmagee in County Antrim, and on Rathlin Island by Scottish Covenanter soldiers. Though a supporter of British rule in Ireland, 19th century historian William Lecky wrote "it is far from clear on which side the balance of cruelty rests".