Shallan is from the La Perouse Aboriginal Community situated on the northern arm of Botany Bay. She currently works as a Teacher at Matraville Sports High. Shallan belongs to the Dharawal people of Coastal Sydney, Illawarra and Shoalhaven River and comes from a long line of Dharawal women from Kate Sims, Elizabeth Matthews, Minnie Broughton, Emma Timbery, Mary Lyons, Mary-Jane Walker, Susan Edwards and Esther Walker. Shallan enjoys travelling, camping and playing cards.