Analysis of information sources in references of the Wikipedia article "Akar-Bale language" in English language version.
... The Aka-Kol tribe of Middle Andaman became extinct by 1921. The Oko-Juwoi of Middle Andaman and the Aka-Bea of South Andaman and Rutland Island were extinct by 1931. The Akar-Bale of Ritchie's Archipelago, the Aka-Kede of Middle Andaman and the A-Pucikwar of South Andaman Island soon followed. By 1951, the census counted a total of only 23 Greater Andamanese and 10 Sentinelese. That means that just ten men, twelve women and one child remained of the Aka-Kora, Aka-Cari and Aka-Jeru tribes of Greater Andaman and only ten natives of North Sentinel Island ...
