Professor Henry Walton Jones Senior. is the overarching protagonist of the Indiana Jones series, he is a professor of archaeology. He is an aficionado of the Holy Grail and the father of Henry 'Indiana' Jones Jr. who is the deuteragonist of the 1989 film Indiana Jones and the Last Crusade and a posthumous character in it's 2008 sequel Indiana Jones and the Kingdom of the Crystal Skull and 2023 film Indiana Jones and the Dial of Destiny. Jones was born in 1872. He had married and had a son whom he and his wife named Henry, Jr.
Jones joined his son on an adventure to discover the Holy Grail while racing with the Nazis to search for its location. The Jones' duo are accompanied by Sallah and Marcus Brody and their guide is Jones' diary containing scriptures and images relating to the Grail. As senior, he calls his son junior which annoys him very much. To avoid being known as Junior, he switches to Indiana, which we learn that he got from his dog.