The Aboriginal Clark(e) family, travel back and forwards from valley to valley. Aborigine Tilly Clark, sister of Hiram from a Sackville family, is a source of Darkinjung language for Robert Mathews. Mildred “marries” Aborigine Joe Clark at the Hawkesbury after her first partner John Everingham dies in 1875. Clark children are born to Aboriginal mother/s of the Hawkesbury-Hunter Ranges. Along with “full blood” Joe Goobra, Robert Mathews’ friend “halfcaste” Charlie Clark is one of the last to undergo traditional male initiation. (Mathews, Burbung of the Darkinung, in Ford p157).