Another bit of information I am looking for is the amount of ash left from burning coke. When coal is heated in an oxygen starved oven it emits many useful products, among them hydrogen cyanide. What is left is called coke which is an very clean burning fuel which leave little ash.

      But since some 70 pounds of coke (more if coal is used) are needed to cremate the average human body some significant amount of coke ash (and much more coal ash) would be left behind. The significance of this is that none of the coke ashes have ever been found either.

      But that is not surprising as there has never been any indication or record or aerial photo image of the approximately seventy million pounds of coke needed to cremate these bodies at Auschwitz-Birkenau.

      As there is no indication of the coke it is hardly surprising that there is no indication of the ashes.