While appearing as a guest on BBC Radio 4's radio programme Desert Island Discs in May 1977, Travers revealed that the name "M. Poppins" originated from childhood stories that she contrived for her sisters, and that she was still in possession of a book from that era with this name inscribed within. Travers's great aunt, Helen Morehead, who lived in Woollahra, Sydney, and used to say "Spit spot, into bed," is a likely inspiration for the character.
In a 1977 interview on the BBC radio programme Desert Island Discs, Travers remarked about the film, "I've seen it once or twice, and I've learned to live with it. It's glamorous and it's a good film on its own level, but I don't think it is very like my books."
Travers was appointed Officer of the Order of the British Empire (OBE) in the 1977 New Year Honours. She died in London on 23 April 1996 at the age of 96. Although Travers never fully accepted the way the Disney film version of Mary Poppins had portrayed her nanny figure, the film did make her rich. The value of Travers' estate was probated in September 1996 at £2,044,708.