Letter from Henry Spalding to General Gilliam, February 3, 1848
Letter from Henry Spalding to Nez Perce Chiefs, February 3, 1848
Letter from Henry Spalding to Elkanah Walker, Cushing Eells, and Marcus Whitman, October 2, 1843
Lecture by Henry Spalding, titled "The Whitman Massacre," part 7, March 23, 1866
Lecture by Henry Spalding, titled "The Whitman Massacre," part 8, March 30, 1866
Lecture by Henry Spalding, titled "The Whitman Massacre," part 9, April 6, 1866
Letter from Henry Spalding to David Greene, March 1, 1848
Letter from Henry Spalding to David Greene, April 14, 1848
Letter from Henry Spalding to David Greene, May 2, 1848
Letter from Henry Spalding to David Greene, July 13, 1848
Letter from Henry Spalding to Dudley Allen, September 1848
Letter from Henry Spalding to Henry Hill, October 8, 1848
Letter from Henry Spalding to Senator Naismith, August 31, 1865
Lecture by Henry Spalding, titled "Early Oregon Missions: Their Importance in Securing the Country to Americans," part 1, February 9, 1866
Lecture by Henry Spalding, titled "Early Oregon Missions: Their Importance in Securing the Country to Americans," part 2, February 16, 1866
Lecture by Henry Spalding, titled "Early Oregon Missions: Their Importance in Securing the Country to Americans," part 3, February 23, 1866
Lecture by Henry Spalding, titled "Early Oregon Missions: Their Importance in Securing the Country to Americans," part 4, March 9, 1866
Lecture by Henry Spalding, titled "The Whitman Massacre," part 5, March 9, 1866
Lecture by Henry Spalding, titled "The Whitman Massacre," part 6, March 16, 1866