John S. Pillsbury Resources
Records of Governor John S. Pillsbury, 1876-1882
John S. Pillsbury and family papers, 1833-1934
MNopedia: Pillsbury, John Sargent (1927-1901)
Minnesota Legislative Reference Library
The Pillsburys of Minnesota by Lori Sturdevant (St. Paul: Minnesota Historical Society Press, 2011)
"John Sargent Pillsbury," Lives of the Governors of Minnesota by James H. Baker (St. Paul: Minnesota Historical Society, 1908)
"John Sargent Pillsbury," Progressive Men of Minnesota ed. by Marion D. Shutter & J.S. McLain (Minneapolis: The Minneapolis Journal, 1897)