{"value"=>"<p><em>\"The Negro on the American Frontier\", 1963-1973</em> subseries is also the title of Porter's book which was published by Arno Press and <em>The New York Times</em> in 1971. This book is a collection of Porter's most significant published articles on African Americans on the American frontier, originally written over a period of thirty-seven years and newly edited and updated for this book. This compilation expands the study he prepared for \"Black Riders,\" and, in addition to African Americans in the cattle country discusses African Americans in other sections of the United States, the Seminole War, fur trading, the sodhouse frontier, etc. Material for this book includes Porter's research proposals, manuscripts, correspondence, reference articles and index card notes.</p>"}