Through his mother's family, Krogh told, he had a dash of gipsy blood in his veins: he certainly had inherited an unconventional spirit and appearance and a love of travel and adventure in open spaces.HILL, A. V. August Schack Steenberg Krogh. 1874-1949. Obituary Notices of Fellows of the Royal Society. 11. 1950, roč. 7, čís. 19, s. 220–237. Dostupné online. (anglicky)