Mary Luana Williams is an American social activist and writer. Williams wrote The Lost Daughter: A Memoir about her life experiences, focusing on her life with two families. Mary worked as a fund-raiser for the International Rescue Committee in their Atlanta office. When she saw refugees coming in from Sudan, she developed a passion for working with them, eventually leaving her job with IRC in 2001 to work more closely with Sudanese refugees through her own organization. Mary founded the Lost Boys Foundation, a group that works with the Lost Boys of Sudan to help them after they have been displaced by Sudan's wars and turbulence. At Mary's urging, writer Dave Eggers began talking to Valentino Achak Deng, a Sudanese refugee and member of the Lost Boys Foundation program, about Deng writing a memoir. The work eventually became What Is the What: The Autobiography of Valentino Achak Deng.