For material related to the history of the Massachusetts Agricultural College and the Sapporo Agricultural College, see:

• William Smith Clark Papers, 1814-2003

For material related to 19th century Japan, see:

• Benjamin Smith Lyman Papers, 1831-1921 (bulk 1851-1915)

The following is a list of sources consulted during the preparation of this finding aid.

• Maki, John M. William Smith Clark: A Yankee in Hokkaido. Hokkaido University Press, Hokkaido, Japan, 1996.
• Miyabe, Kingo: "A Brief Biography of the Late Dr. Willliam Penn Brooks."
• Rand, Frank Prentice. Yesterdays at Massachusetts State College. The Associate Alumni Massachusetts State College, Massachusetts, 1933.