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Hugh's Father was the husband of Granny Neutron the father of Hugh Neutron and Kari Neutron, the father in-law of Judy Neutron, and the grandfather of Jimmy Neutron and Eddie Neutron. He was never seen but was briefly mentioned in the episodes Time is Money and Grumpy Young Men. He is most likely deceased. However, there is currently nothing to back that claim up. His status remains in limbo.
Trivia[]
- Jimmy’s great-aunt, Amanda Neutron is probably his sister.
- According to his son Hugh in Grumpy Young Men, old Jimmy resembles his grandfather.