Packard’s Guardians:
John MacArthur and the Legacy of Three Generations
In the story of the Packard Proving Grounds’ survival and revival, few names carry the generational weight and heartfelt dedication of John MacArthur. As a former president of the Packard Motor Car Foundation (PMCF), John played a critical role in preserving the site—but his connection to the Proving Grounds runs far deeper than boardrooms and negotiations. It’s a bond forged over decades, shaped by time spent at the historic testing facility with his father and grandfather, both of whom lived and breathed Packard.













