Louis Campau has been credited as the founder of Grand Rapids, Michigan, although there were Baptist missionaries and other fur traders in the area before Campau. His trading post was located on the east side of the Grand River, while the mission settlement was on the west side.

This series includes select original documents which have survived, along with reference materials related to the couple. Also, there area materials located in other archival collections, and many references to Louis in particular in published books about Grand Rapids.