On September 29 , in a letter to Morgenthau , Jackson placed the survival rate of the deportees at about 15 percent .
On September 29 , in a letter to Morgenthau , Jackson further noted that this had amounted to the deaths of about a million Armenians .
On September 29 , in a letter to Morgenthau , Jackson placed the survival rate of the deportees at about 15 percent and further noted that this had amounted to the deaths of about a million Armenians .