Source: The Advertiser, June 8, 1866, Ad:

John S. Mills
DEALER IN HARDWARE and GROCERIES
Has, and will keep constantly on hand, the best selected stock of Hardware and Groceries in town.
If you want "Cheap Goods", give him a call; as he is selling at the lowest market price.

Source: The Manchester Republican, September 7, 1872

John S. Mills is now snugly ensconsed in the room left by Blickenstaff & Martin. John divides his time fairly between his babies and his Hardware Store. When you can't find anything you want anywhere else, go there and get it, he always keeps it.