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Title David Thompson letter to Anthony Barclay; Williamstown
Date March 10, 1825
Description 1 letter; 3 pages
People Thompson, David, 1770-1857
Search Terms International Boundary Commission
Treaty of Ghent
Scope & Content 1825_Mar_10

March 10 1825 Williamstown

Dear Sir/
I should have wrote you the com-
mencement of this month, but have been laid
up this time with a violent cold, so prevalent
all over the Canadas. The Assistant has been
equally ill, but we are both now resuming
our duties.
On the 22nd February I left this
for Montreal, and on arriving there found Mr. Ross
had gone to New York, and Mr. Pomaineville on the
petty jury?, and it was the 25th before (By application
to Judge Reid) I could get him released from that
duty, when we inspected the stores &c belonging to
the Commission, and drew out in writing a list
of the oil clothes, tents, beding &c &c necessary for
you and for the survey.
Lieutenant Bayfield has sent me
a copy of his survey of the River St. Lawrence up
to the Rapids; and also of Pigeon Island, with its
position in Latitude and Longitude, which I shall
take with me to show you at the Falls of St. Maries.

end p1
begin p2

In Feburary Mr. Ferguson wrote to me requesting
the results of my observations in several places, as in Lac
La Croix his observations and survey did not agree...
And from the list he has sent me I find that
some of my observations for Latitude do not agree
with his, making a difference of two miles, whereas
Mr. Bayfields agree with mine frequently to one
second, and never differ more than 2 or 3 seconds.
I see we must be extremely careful to prove
the geographical accuracy of our maps, when
such wide differences are made even Latitude.
Among the things ordered for you is a tent
of 22 Ells, with a Fly: a mattrass of 6 1/2 feet by 2 1/2 ft
to have 2 prs of blankets and one pair as a pillow.
Your Beding to be one pair of fine rose Blankets.
1 thick green blanket of 4 points, 1 plain white blan-
ket and 2 prs of cotton sheets. I have also ordered
much the same for Dr. Williams of whom I have
wrote to Mr. Hale to request that he will be at Montre
al by the 25 April. Should any thing occur to you
that you wish me to attend to be so good as inform
me that I may get it done. If only Dr. Williams
accompanies you, one tent may be sufficient, but

end p2
begin p3

if another gentleman, two tents would be best
besides getting his beding ready.
We were under much anxiety from
the newspaper accounts of the severe accident
which happened to you; but thank God, Dr.
Bigsby wrote me, you were entirely recovered.

Your most obedient
and humble servant
David Thompson

Anthony Barclay Esqr.
His Majestys Commissioner
&c &c &c

Admin/Biographical History This compiled collection includes papers from Thomas Barclay (1753-1830), his son, Anthony Barclay (1792-1877), John Ogilvy (d. 1819), Ward Chipman (1754-1824), Ward Chipman, [Jr.] (1787-1851), David Thompson (1770-1857), Alexander Wadsworth Longfellow (1814-1901) and others related to the determination of the boundary between Canada and the United States. Materials include government documents, correspondence, maps, surveys, diaries and Indian deeds related to the determination of the boundary between Canada and the United States, particularly of the years of the St. Croix Commission, 1796-1812, the Commissions appointed after the Treaty of Ghent, 1814-1838, and the Commissions under the Treaty of Washington, 1842. Papers of diplomats appointed by the British and American governments include the correspondence of explorers who surveyed the boundary zones and of several other diplomats, political officers and aids who became involved in the arbitration of the border. The explorations around the Island of St. Croix by Robert Pagan and Native American Francis Joseph Neptune, and a map by Chief Wasp of the Ojibway tribe in the vicinity of Ontario and Minnesota are noteworthy.