Geraldine Leong spent close to a year researching and writing about Pastor John Willis. She first discovered Pastor Willis when she was commissioned by Singapore Christian Foundation in October 2008. Her research spanned the Interbellum Generation in America through to the post-colonial age in Singapore. It also took her to the home of Pastor Willis' nephew in Florida, USA, as well as scores of homes, churches and offices in Singapore, and included multiple online conversations with persons who knew Pastor John Willis and are now residing across the globe.

Geraldine holds a Bachelor of Arts from the National University of Singapore, with majors in English Language and Sociology. She is the Principal Consultant of Glow Consulting, an integrated communications firm specialising in corporate, marketing and financial communications. She lives in Singapore with her husband, Gary Tan, and they worship at Yishun Methodist Mission.