The story
Imperial produced mid-size cars with four-cylinder engines; the bodywork and mechanicals were primarily off-the-shelf rather than bespoke. Coachwork was done out-of-house by Beaudette Company, which also did work for Buick and Ford. In 1912 the Imperial factory burned down and the company moved into the old Buick truck plant. In 1914 a six-cylinder engine was introduced. Car production lasted until 1916.
In 1915, Imperial merged with Marion from Indianapolis, Indiana to form Mutual Motors Company. Under this new name, they stopped production of Imperials the following year. The new cars produced in Jackson were called Marion-Handley instead.
From Wikipedia’s article on Imperial Automobile Company, shared under CC BY-SA 4.0.4