I have known and interacted with Jack for many decades, mainly in his role at CDFG/CDFW working on sea otter and white shark interactions after Dan Miller moved on. I was always interested in the ecosystems that sea otters, white sharks, and other organisms were integral parts of, mainly for a course at MLML in Marine Ecology, but also another course - Population Biology. Jack was an affable and knowledgeable individual, well versed in the ecology of Monterey Bay. I was very sad to learn that he had passed away. But he has left behind a strong legacy of dedication to his work and to the marine ecosystems of Monterey Bay. He will be missed!