Organizational records (1960-2021) sub-series contains meeting notes, correspondence, conference programs, research files, and financial records from von Till Warren’s involvement in various organizations. The Nevada Humanities Committee, Friends of Nevada Wilderness, Clark County Comprehensive Planning, the National Trust for Historic Preservation (NTHP), Preservation Association of Clark County (PACC), and Soroptimist International are represented. There is also overlap with organizations such as the GCAC and GHS.