Leflar, Helen Finger and Carolyn Lewis Newbern. Yesterdays: A Walk through the Washington-Willow Historic District (Washington County Historical Society, Fayetteville: 1983). This booklet gives architectural and historical information about houses and buildings for the original portion of the Washington-Willow Historic District, including a map of the district when it was created. The district has since been expanded geographically as far as Olive Avenue on the east and Prospect Street on the north. The booklet also includes pen and ink drawings of several of the houses. Its call number at the University of Arkansas library is F419.F3 Y4.