Walter Zill
Walter Zill is a Florida mango grower associated with the selection and propagation of mangoes, including the selection known as Pickering. His work belongs to the broader history of the Zill family's involvement with mango growing in South Florida. A named seedling selection becomes dependable nursery material through identification and vegetative propagation, not simply by sharing a family name. When researching this history, distinguish the person, the cultivar, and other family members rather than transferring a cultivar's growth or disease traits to every Zill selection.