The family members represented in the Haweis family fonds include Lionel Haweis, his father and mother, Reverend Hugh Reginald and Mary Eliza Haweis (née Joy), sister Hugolin Haweis and brother Stephen Haweis, and other relatives. The name is pronounced, "Hoyse."
Hugh Reginald Haweis was an English scholar, author and lecturer. His wife, Mary Elizabeth Haweis, was an author of women's and children's books whose book on Chaucer became a standard text for English schools. Their children included Lionel, who worked as a tea planter before moving to Vancouver to open the Rosetti Photographic Studio and later worked at UBC Library; Hugolin, a photographer, humourist and writer; and Stephen, an artist. Lionel's daughter, Renee Haweis Chipman, was a writer who worked as assistant editor to Ma Murray and served in the Canadian Army Women's Corps. She established the Lillooet Museum and was a curator until she died in 1986.