Some of these letters relate to McWhorter's efforts to obtain data on the 1877 Nez Perce War and miscellaneous Indian subjects. Other material includes occasional writings, original postal covers, desiderata lists, memorabilia, research questionnaires, and a small amount of biographical material. Series 4, Indian Affairs , 1891-1944, nd, consists of miscellaneous correspondence and documentation relating to McWhorter's varied efforts on behalf of Indians, particularly in terms of land and water rights. Series 5, Humane Society , 1911-1944, documents McWhorter's involvement with animal welfare, chiefly in Yakima, Washington. Includes correspondence and printed items.
Some literary material is included.
Series 6 also includes draft versions of Mourning Dove's legends and tales. Series 8, Newspaper Articles , 1863-1944, nd, consists of clippings from local and regional newspapers on miscellaneous subjects, chiefly American Indian affairs and historical stories, Humane Society news, contemporary events, and local news and association involvements. A few exhibit McWhorter's annotations. Some newspaper items left in other series. Includes specific depictions of individuals, scenes, and events from Indian legends and tales, representations of military engagements and battlefields, and material relating to ethnography, geography, war commemoratives, and Indian reservations.