Papers include correspondence, notes, court records, financial records, and newspaper articles. Topics include ranching and business interests, family members, legal cases, investments, oil development in northeastern Wyoming (particularly the Kaycee dome), and Wyoming politics featuring information on Joseph Carey, Lester Hunt, John Kendrick, Joseph O'Mahoney, Nellie Tayloe Ross, William Ross, Harry Schwartz, and Nels Smith.

Includes material relating to the Kimball family in Casper, Wyo.; Edness Wilkins's family; Casper civic groups; Nellie Tayloe Ross, director of the U.S. Mint, for whom Wilkins worked as personal secretary; Wyoming politics; and the Democratic Party in Wyoming.