 In 2003 Milius donated her papers to the Archives of American Art.Following her death, the remainder of her children's book material was donated to the Kerlan Collection in Minnesota, and her artwork and wood blocks to the Rutgers University Libraries in New Brunswick, New Jersey.In 1935 Milius married her first husband, Daniel House, a law student at the University of Chicago; the couple would live in Chicago and divorce in 1938.