real. On the outbreak of the Revolution joined the colonials; raised
a regiment of volunteers; and in 1775 became brigadier-general. In 1776
commanded a brigade at the siege of Boston, capturing Dorchester
Heights, and promoted major-general. Succeeded to the command of the
American army in Canada on the death of General James Montgomery,
arriving before Quebec on May 1, 1776. Died near Chambly, on the retreat
from Quebec. =Index=: =Dr= Replaces Wooster, recalled, 136; stampede of
his forces when attacked by Carleton, 138. =Bib.=: _Cyc. Am. Biog._ _See
also_ Siege of Quebec, 1775-1776.

=Thompson.= =T= Elected in York, New Brunswick, 108.

=Thompson, David= (1770-1857). Born in the parish of St. John's,
Westminster, England. Educated at the Gray Coat School; and entered the
service of the Hudson's Bay Company, 1784. The first of his voluminous
journals opens at Fort Churchill in that year. The last is dated 1850.
The journals fill forty-five volumes of manuscript, and cover a period
of sixty-six years. Remained in the service of the Hudson's Bay Company
until 1797, and in that period carried on explorations and surveys of
the Nelson, Churchill, and Saskatchewan Rivers, and the intervening
territory. In 1797 joined the North West Company, and in the years that
followed, explored the upper waters of the Assiniboine; made a journey
overland to the Mandan villages on the Missouri; and another to the head
waters of the Mississippi; and surveyed portions of the upper waters of
the Saskatchewan, Athabaska, and Peace Rivers. From 1807 to 1811,
explored the entire system of the Columbia and Kootenay Rivers, from
source to mouth. Left the North-West in 1812, and from 1816 to 1826
engaged in surveying and defining the international boundary. Afterwards
carried out several minor surveys, in what is now eastern Canada. Died
at Longueuil, near Montreal. =Index=: =MS= Referred to in Mackenzie's
letters, 58; his explorations, 103; leaves Hudson's Bay Company, and
joins North West Company, 103; visits the Mandan Indians, 104; further
explorations, 105; sent to explore the Columbia, 106; crosses the Rocky
Mountains, 1806, and builds post on Columbia, 106; descends the Columbia
to its mouth, 106-107; builds other posts west of the mountains, 107;
leaves service of the North West Company, 107; prepares his great map,
107; Thompson River named after, 109. =D= Completes his western work,
1811, 58; returns to eastern Canada, 58; ends his days