+---William Tonkin +---William Rouncevall Tonkin (ABT 1833-) | +---Grace Rounsevell +---Alfred Tonkin (ABT 1859-) | | +---? Rawlings (-BEF 1871) | +---Elizabeth Rowling (ABT 1834-) | +---Eliza ? (ABT 1802-) Mable Tonkin