In the 1900s, it was the site of the Detroit and Charlevoix and Grand Rapids and Indiana railroad junction.
As it was built through the area, the Grand Rapids and Indiana Railroad platted the settlement at the juncture of the rail line with the south branch of the Boardman River.
Becomes a major transportation hub, serving both the Grand Rapids and Indiana Railroad and Chicago and Western Indiana Railroad, and sets the tone for becoming the northern Grand Rapids-area crossroads it is today.
During the 1990s much of the old railroad right of way between the north side of Grand Rapids and Cadillac, Michigan was turned into the White Pine Trail State Park.
Jennings was a terminus of the Missukee spur of the Grand Rapids and Indiana Railroad, with a junction on the main line named Round Lake.
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The town was the northern terminus of the Grand Rapids and Indiana Railroad for two years and also was the crossing point for the east to west running Toledo, Saginaw and Muskegon Railway, which became the Grand Trunk Western Railroad, which was built through the town in 1888.
Edgerton also served as president of the Grand Rapids and Indiana Railroad and the Ohio Railroad, which were constructed to connect major cities of the Midwest, especially the booming industrial city of Chicago, through which many natural resources flowed to the East.