Source: the Manchester Republican, July 3, 1873

GEORGE GRESSO manufactures boots and shoes for the local trade. He occupies the two story brown frame opposite the American house. He works two or three hands and sells nothing but his own work, which he takes pride in making as neat, durable and cheap as can be found in any other house in the county.

Source: The Manchester Republican, August 7, 1873

George Gresso has removed his shoe shop to the east room of the American house, formerly occupied by the city bakery.

Source: The Manchester Republican, February 19, 1874

GEORGE GRESSO, manufacturer of boots and shoes, is located on the South side of Main street, opposite Lowry's dry goods store. He has been engaged in the business here for the past twelve years, and deals only in work of his own manufacture. Mr. G. employs a number of hands and takes right hold himself as though he meant business. His work is made of the best material and warranted as good as can be bought elsewhere for the money. He aims to do as near a cash business as possible.

Source: North Manchester Journal, November 19, 1885

Winter is rapidly approaching and every one should prepare for its severities in due time. Gresso & Shock have the best, largest and cheapest stock of boots, shoes, rubber goods, hats, caps, gloves, mittens and hosiery every displayed in the city and their goods are specially selected for the winter trade. Call and see them before you buy your goods.
...
The place for rubber goods is Gresso & Shock's boot and shoe store. New goods and shoes in great quantities at Gresso & Shock's.  Call and see their immense stock.
...
A full line of caps in all styles and shapes at lowest prices at Gresso & Shock's.