Naomi McClure-Griffiths is Australia's pre-eminent expert on the atomic hydrogen gas distribution and evolution in our galaxy, the Milky Way, and its neighbours, the Magellanic Clouds. She has made seminal contributions to our understanding of atomic gas and magnetism within these galaxies through leadership of high-fidelity observational surveys undertaken with Australia's radio telescope facilities. Her work includes the discovery of a new spiral arm within the Milky Way, the first detection of neutral gas out-flowing from the nucleus of the Milky Way, and the pioneering demonstration of the importance of magnetic fields in the flow of matter into the Galactic disk.