This collection consists of papers (1846, 1887-1997) from various members of the Bell Family of Helena, Montana, including William S. Bell (father), Mary "Millie" Bell (mother), and Martha Bell (Daughter). Papers include biographical materials (1927, 1997, undated) consisting of an article on William Bell's missionary work, an obituary for Martha Bell, and a general family history (Simonton and related families); correspondence (1846-1920) primarily between Mary and William; diaries (1887-1914) kept by Mary "Millie" and Martha, primarily discussing life in Helena; and writings by William Bell concerning the history of congregational churches in Montana, and an annual report for the Montana Historical Society. The writings also include an article by Martha Bell entitled "Special Women's Collections in United States Libraries".