Mary is an internationally recognized scholar in Survey Sampling and Stochastic Processes. She has written a well-known book, Theory of Sample Surveys, published in 1997. She has done high quality research spanning a wide spectrum from epidemiology and ageing models through to stochastic differential equations and semimartingales. Her 1986 International Statistical Review paper “Parameters of super-population and survey population: Their relationship and estimation” with V.P. Godambe is a seminal piece. It is widely quoted for its justification of design-based framework when estimating unknown parameters from a parametric model. Mary is also wellknown as an excellent mentor and supervisor for graduate students. She has served the profession and her university over a long and very productive career.