William D. Green, author, professor and former superintendent of schools, is this year's winner of the Hognander Minnesota History Award for his book, "The Children of Lincoln: White Paternalism and the Limits of Black Opportunity in Minnesota 1860-1876." The award, which is given every two years, honors an outstanding scholarly work on the topic of Minnesota history. Of his Lincoln book, the judges said, it was selected as the winner "based on its significance to Minnesota's history, and its contribution to the broader panorama of race relations and the context of Reconstruction in American history." This is the second time Green has won the award; he also won in 2016 for "Degrees of Freedom: The Origins of Civil Rights in Minnesota 1865-1912." Green, who teaches at Augsburg College in Minneapolis, will be honored at the annual Minnesota Book Awards gala April 28 at the Ordway Center for Performing Arts in St. Paul. Tickets are $45 and can be purchased at ordway.org/mnba.