He Speaks Our Language is the biography of Wilfrid Henry Douglas, a veteran linguist and missionary to Aboriginal people in Australia for more than 60 years. Wilf is the father of the author, Rob Douglas. The book is based on memoirs written by Wilf prior to his death in March 2004. The book traces the journey of Wilf from his childhood in Belfast, Northern Ireland and his transportation to a children’s home, Fairbridge, in rural Western Australia