The Lansing & St. Johns Electric Railroad ran north from Lansing, MI through DeWitt, MI ending in St. Johns, MI, a total of less than 30 miles. It existed from about 1900 - 1930. Although primarily a passenger line, it did carry light freight and mail, as well as some agricultural and manufacturing goods during its life.
There is a book written about it called the "Great Northern Ghost"
Ceasar, Ford Stevens. The Great Northern Ghost. Lansing: Wellman, 1980
It was later purchased by the Michigan Electric Railway company.