https://digital.katalog.queersearch.org/s/katalog/item/45048, “Man bites Man: The Scrapbook of an Edwardian Eccentric”, https://digital.katalog.queersearch.org/s/katalog/item/50834, QueerSearch, accessed 15. Juni 2025, https://digital.katalog.queersearch.org/s/katalog/item/29473