Boronia Lucy "Bonnie" Giles (née Sanderson; 25 August 25, 1909 – 2 May 1978) was an Australian journalist who wrote under the pen names Mary Ferber, Auntie Nell and Peg Pegotty.

Mary Ferber's advice column in Perth's Daily News ran for twenty years.

She went to Perth Modern School for over four years after she won a scholarship and in 1927 she became a part-time student at the University of Western Australia.

Using the nom de plume of Mary Ferber she wrote an advice column for twenty years.

[3] Under the pseudonyms of Peg Pegotty and Auntie Nell she wrote for children who were reading the paper.