Police say 75-year-old Lonnie Sibbett and 70-year-old Leona Sibbett were found dead Friday evening at the home in Leoni Township, about 70 miles west of Detroit.
Blackman-Leoni Township public safety director Mike Jester says officers found extremely high levels of carbon monoxide in the house and in the enclosed garage where the generator was running.
Utility companies say electricity has been restored to more than 90 per cent of the some 1.1 million Michigan homes and businesses that lost power from Wednesday's powerful winds.
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