Jimmy is a common diminutive of the human name James and similar names. Individuals named "Jimmy" whose last name is unknown include:

The young James T. Kirk was also called "Jimmy" by both his family and circle of friends. His aunt Elsa pronounced it "Yeemee" which, along with the nickname "Jimbo," irritated him. (TOS novels: Final Frontier, Best Destiny, The Ashes of Eden)

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