Portman is the same guy who had some questionable sexual contact with the Andamanese

Portman continued to take photographs of the Andamanese in Port Blair until the end of his stay in the island, documenting information about their anthropological details, showing a marked interest in measuring the penises of the Andamanese. Portman often traveled without other British personnel, preferring instead to be accompanied by Andamanese servants with whom he engaged in sexual relations. Portman repeatedly praised the male Andamanese body, writing that “many of the men are very good-looking; as they have none of the thick lips, high cheekbones, and flat noses of the negro type; though the women are rather of the Hottentot Venus order of beauty”.