William Ward Simpson was part of the early Adventist movement, active in the formative decades of Sabbatarian Adventism.
Artifacts at Andrews University
Notable: Original artifacts and manuscripts belonging to William Ward Simpson are held in the basement of the James White Library at Andrews University. The James White Library houses the Center for Adventist Research (CAR), one of the most significant repositories of early Adventist primary source materials in the world. Simpson's papers represent a rare direct connection to the earliest period of the movement.
The Center for Adventist Research at Andrews University preserves letters, documents, photographs, and objects from the pioneer era. On the CAR manuscript collections listing, this is identified as Simpson, William Ward Collection - 81. See the CAR collections index: centerforadventistresearch.org/manuscripts.
Researchers and historians with access to the James White Library's archival collections may consult Simpson's artifacts through the Center for Adventist Research at Andrews University, Berrien Springs, Michigan.