Cobmoosa, or Weebmossa meaning "Great Walker", was an Odawa leader who lived in a Native American village at the mouth of the Flat River at the present-day city of Lowell, Michigan until 1858.

Louis Campau, also spelled Louis Campeau, was an important figure in the early settlement of Saginaw and Grand Rapids - two important Michigan cities in which he had established trading posts. Campau was also involved in negotiations between the local Native Americans and the federal government, including the Treaty of Detroit signed in 1855 by the local chief, Cobmoosa.