Schack August Steenberg Krogh was born in Grenaa, Jutland. His ancestors had emigrated from Holstein and Schleswig, where his father's family had settled as small farmers three hundred years earlier. Krogh's father was a brewer, though he had been trained as a shipbuilder. Ships and the sea were some of Krogh's unceasing interests. Krogh, who was the oldest of six brothers and sisters, had alre...