Jane Goodall’s son, Hugo Eric Louis van Lawick, was nicknamed “Grub.” The family nickname became widely associated with him and even appeared in the title of a children’s book he co-authored with his father, wildlife filmmaker Hugo van Lawick.
Hugo was born in 1967, three years after Jane Goodall and Hugo van Lawick married. He spent parts of his childhood around the researchers, filmmakers, and chimpanzees connected with his parents’ work in Tanzania. His nickname is especially easy to confuse with his formal first name, Hugo, but “Grub” is the distinctive family name asked for in this question.
The nickname also appears in the 1972 book “Grub: The Bush Baby,” written by Hugo van Lawick and Jane Goodall’s son. Goodall’s first husband, Hugo van Lawick, was a major wildlife photographer and filmmaker whose work documented chimpanzees and other African animals. The younger Hugo later lived in Tanzania and was present near the end of his father’s life.