Norman is an undead ox owned by the witch named Maggie. It can be found, along with Maggie's other ox, Babe, in their camp north of the Wizard Tower in central Misthalin. Norman gets irritated quickly by other people, due to the constant sneezing of Babe.
Norman, and the rest of Maggie's camp, were once located east of the Crafting Guild, but after the end of the 2008 Hallowe'en event, they moved to the west of the Legends' Guild. Later they moved to the field south of Draynor Village and after the release of Divination they moved to the north-west of Draynor Village.
Although Norman is mentioned in the Swept Away quest, he is not directly involved.
The update history project is a work-in-progress – not all updates to this topic may be covered below. See here for how to help out!