Ageism, Ageicide and Euthanasia are not the same, though they may all result from the institution of what is now popularly (or unpopularly) described as “death panels” ... self-designated groups and appointed committees that judge whether the survival of a certain person is somehow more valuable than the amount of money required to support or save that life. Hans Calmeyer quite clearly did not make a value judgment about any specific life: he defended lives that he did not even come to know. In his time, the Nazis arrogated the ability to determine who was valuable and who was not, who was of “quality stock” and who was not.
Ageism is discrimination against the elderly, in jobs and other venues. Ageicide is the killing of the elderly, just because.
Ageicide tends to be “justified” by those who claim that the productive years are over, and that it would be compassionate to avoid the suffering and illness that comes with age. Calmeyer would have had none of this: his culture valued the wisdom that comes and remains with age, and the dignity of the human being even in frailty. His parents and family were generally blessed with old age (except for his two young brothers lost in WWI) at a time when medical assistance was not as it is today. Probably precisely because of his awareness of the value of lives lost in battle and other acts of violence, Calmeyer was a pacifist if at all possible, and a practical champion of the rights of the innocent, especially the weak, to defend themselves against tyranny.