Hugo was a Dutch documentary filmmaker who shared Jane Goodall's passion for animals. While working for the National Geographic Society to film a documentary on Goodall, he developed a similar fascination with chimpanzees. He had also earlier met Louis Leakey, which is how they had met in 1962. While not discussed directly in the book, Hugo's documentaries were responsible for popularizing Goodall's scientific work and her advocacy on behalf of protected of chimpanzees. While they worked together, Lawick and Goodall fell in love and were married in 1964 in London. They lived together soon thereafter in Tanzania working in the Gombe Chimpanzee reserve. In 1967, they had a son, Hugo Lewis, who they later called Grub. In the late 1970s, Goodall and Lawick were divorced but they remained on friendly terms. While both remarried, they shared common interests and their child.
My Life with the Chimpanzees