Sally was born in Latrobe, Tasmania, in 1957. She lives with her husband and sometime co-writer Darrel and their children James and Tegan. The Odgers family also includes a spaniel, a cat, four cockatoos, and a shifting population of pet rats, mice and other creatures. Everybody, including the animals, contributes (knowingly or not) to plot-lines, characters and incidents for books and stories.
Sally's favourites among her own books include the Bandinangi Books (which continue to generate enthusiastic mail from primary school readers), Amy Amaryllis, Shadowdancers, Aurora and Trinity Street. Other books she particularly enjoyed writing include Timedetectors, Theft in Time, CD and the Giant Cat and Tasmania: A Guide (all co-written with Darrel), a picture book called Bunyips Don't and two romances for adults, both published under the pseudonym Tegan James. Shadowdancers and Aurora were both shortlisted for the 3M Talking Book Awards, Looking Out for Sam was commended in the Christian Children's Book of the Year Awards and both Amy Amaryllis and The Follow Dog have been Children's Book Council Notable Books.