Pork-packing, as a steady business, offered but little inducement, so Mr. Blair decided on establishing himself on the river as produce dealer and commission merchant. The capital required was small, and the work not exhaustive, for the facilities for shipping were slight and the amount to be shipped small; warehouses were of the most modest dimensions, and docks existed only in imagination. When the shipping merchant had a consignment to put on board one of the diminutive vessels that at intervals found their way into the port, the stuff was put on a flat boat and poled or rowed to the vessel's side, Business was conducted in a very leisurely manner, there being no occasion for hurry, and everybody concerned being willing to make the most of what little business there was. The slow moving Pennsylvania Dutch who had formed settlements in northeastern Ohio, and drove their wide wheeled wagons along the sometimes seemingly bottomless roads to Cleveland, plowed through the mud on the river bank in search of "de John Blair vat kips de white fishes," and after much chaffer, unloaded the flour and wheat from their wagons, and loaded up with fish and salt, sometimes giving three barrels of flour for one barrel of salt. In 1827, the Ohio Canal was partially opened to Cleveland, and a revolution in trade was effected. The interior of the State was soon brought into communication with the enterprising merchants on Lake Erie and the Ohio river. Mr. Blair was prompt to avail himself of the opportunity to increase his trade. He built the first canal boat constructed in Cleveland, and launched her in 1828, near the site of the present Stone Mill, amid the plaudits of all the people of the village, who had turned out to witness the launching. As soon as the craft settled herself proudly on the bosom of the canal, Mr. Blair invited the spectators of the launch to come on board, and, with a good team of horses for motive power, the party were treated to an excursion as far as Eight Mile Lock and return, the whole day being consumed in the journey. Subsequently Mr. Blair became interested, with others, in a line of twelve boats, employing nearly one hundred horses to work them. From this time Cleveland continued to grow and prosper. The products of the interior were brought in a steadily increasing stream to Cleveland by the canal, and shipped to Detroit, then the great mart of the western lakes. A strong tide of emigration had set towards Northern Michigan, and those seeking homes there had to be fed mainly by Ohio produce, for which Michigan fish and furs were given in exchange. But the opening of the Erie Canal placed a new market within reach, and Mr. Blair was among the first to take Ohio flour to New York, selling it there at fourteen dollars the barrel.