- A History of Missouri From the Earliest Explorations and Settlements Until the Admission of the State Into the Union; Volume 2
- A History of Missouri From the Earliest Explorations and Settlements Until the Admission of the State Into the Union; Volume 3
- The Spanish regime in Missouri; a collection of papers and documents relating to upper Louisiana principally within the present limits of Missouri ... Seville, etc., translated from the original
- Memorial Sketches of Pioneers and Early Residents of Southeast Missouri
- The Boundaries of the Louisiana Purchase; a Historical Study