My Family Tree

Alexander was the second-eldest son of James Campbell and Elizabeth Townshend of Park Corner, Born in 1778

from PEI Archives:

Alexander Campbell (1778-1856) married Sarah Urquhart, (?-1842) daughter of the Reverend John Urquhart. Formerly of Maine, the Reverend Urquhart established a Church of Scotland at Princetown and two years later moved to the Miramichi. A merchant and shipbuilder, Alexander became a member of the House of Assembly and in 1828 was appointed to the office of the Treasurer of Prince Edward Island. In 1830 he moved to New Brunswick with his wife Sarah. He died at Dalhousie, New Brunswick, on 29 October 1856. Sarah died at Campbellton, New Brunswick, on 30 September 1842.

Daniel F. Johnson : Volume 16 Number 1224
Date November 22 1856
Place Chatham
Newspaper The Gleaner and Northumberland Schediasma
d. 29th ult., Dalhousie, age 78, Alexander CAMPBELL, Esq., formerly of Bedeque, P.E.I.

The Islander – Dec 5, 1856
Died.
Suddenly at Dalhousie, N.B., o the 29th October, at the advanced age of 78 years, shortly after recovering from a severe illness, in which he ever expressed his readiness to obey his Maker’s call, Alexander Campbell, Esq., formerly of Bedeque House, Prince Edward Island.

Also John Alexander - brother of Archibald who married Sarah's sister Charity.