Humphries is of Indigenous Australian heritage and grew up across northern Australia. He is
Nyul Nyul, Oomiday and
Worrora. He started playing football in the
Pilbara for the
Wickham Wolves. Moving to
Perth to attend boarding school at
Hale and be part of the next generation academy, he played in
Swan Districts West Australian Football League (WAFL) colts premiership in 2021, and in the club's 2023 WAFL reserves premiership victory, before entering the AFL draft for a third time. He was awarded Swan District's 2023 reserves best and fairest. ==AFL career==