Abstract John Neill was a Helena, Montana, real estate man. Records (circa 1889-1930) concern his family real estate business and other investments and civic involvements. There are subgroups for John, his wife Margaret Neill, son George G.E. Neill, and for the Independent Investment Company, Independent Publishing Company, Lewis and Clark County Democratic Central Committee, Madison River Improvement Company, Montana Outdoor Advertising Company, Montana Properties Company, and Montana Rapid Transit...