Jennifer (Jenny) Hammond is the eldest granddaughter of John Hammond. The owner of InGen and the man who created Jurassic Park. This story is about Jenny's role in the first trilogy of Jurassic Park. She is only sixteen in the first movie. Jennifer loves reptiles, which is why she loves dinosaurs. John even allowed her to see some of the births of the dinosaurs in Jurassic Park including their T-rex that she called Rexy. The reason being Jenny's parents died when she was little and John became her primary guardian. Picture of Jenny on cover.