found: NUCMC data from New Bedford Whaling Museum, Kendall Institute for Emeline (Schooner). Logbook, 1843 July 24-1844 June 23(Ichaboe Island)
found: University of Cape Town, Dept. of Statistical Sciences, Avian Demography Unit WWW Home page, Feb. 24, 2003(Ichaboe Island, Namibia; small island (6.5 ha), about 1.5 km offshore, 48 km north of Lüderitz, Namibia)
found: National Imagery and Mapping Agency WWW Home page, GEOnet Names Server, Feb. 24, 2003(Ichaboe Island; lat.: 26ʻ 17' 00" S; long.: 014ʻ 57' 00" E; variants: Itshabo Island and Ichabo Island)
found: GeoNames [algorithmically matched]island; 26°17ʹ00ʺS 014°57ʹ00ʺE