For more than 70 years, Guernsey Farms Dairy has been a vibrant family enterprise and a Northville, Mich., landmark. Run by the McGuire family since 1940, Guernsey is known for crafting quality dairy products with local, hormone-free milk. Guernsey Farms Dairy milk and ice cream are offered for sale in nearly every major grocery chain and noteworthy specialty grocery markets as well as many smaller dipping ice cream shops in Southeast Michigan.