Superior street and Vineyard lane, and about the same time established a
warehouse at the foot of Superior street and commenced his career in the
commerce of the lakes. He built the schooner Minerva, which was the first
vessel registered at Washington, from the District of Cuyahoga, under the
U. S. Revenue Laws. For many years Mr. Merwin, under contracts with the
Government, furnished the supplies required at the U. S. Garrisons on the
western frontiers, at Fort Gratiot, Mackinaw, Sault St. Marie, Green Bay
and Chicago, as well as the Hudson Bay Company at the Sault St. Marie.

In a commercial point of view his business became extensive for those
times, and he enjoyed the entire confidence of the Government and of
business men generally throughout the lake country. He succeeded in
accumulating a handsome fortune, which consisted mostly in vessel stocks
and in lands. He owned a large breadth of lands, extending from the south
side of Superior street to the river, which, since his time, has become
exceedingly valuable.

But owing mainly to over-work in the various departments of his
increasing business, while he was yet in the noon of manhood, his
health became seriously impaired, and with a view to recruit it he
sailed for the West Indies in 1829, and on the 3d day of November, of
that year, died of consumption, at the Island of St. Thomas, in the 47th
year of his age. He was a gentleman of fine personal appearance,
measuring six feet and four inches in height, erect and well
proportioned. In a word, he was a man of heart, and of generous
impulses, honest, frank and cordial. In the circle in winch he moved, he
was the friend of everybody and everybody was his friend.