Answer
Tiger Jack Fox, a famous frontiersman and explorer of the American West in the 18th century, earned his nickname due to his vibrant personality, adventurous spirit, and distinctive attire, which set him apart from his contemporaries. In contrast, John Linwood Fox, a renowned American novelist and short-story writer of the late 19th and early 20th centuries, was recognized for his literary contributions rather than his flamboyant nature.