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The Adamson Estate, which forms the eastern boundary of Port Credit, Ontario, was
purchased from the family of Agar Adamason by the City of Mississauga in 1974 upon the urging of the local ratepayers group known
as Project H21 after a proposed real estate development which would have changed the character of the neighbourhood. It is now a
public park on the Waterfront Trail.
Agar Adamson, born on Christmas Day 1865, grandson of William Agar Adamson an influential Toronto clergyman, married into the Cawthra family whose legacy in Peel lives on through the Cawthra Estate located at the intersection of
the eponymmous Cawthra Road and the QEW. Their legacy comes from supplying white pine logs for masts in the Royal Navy of
Britain. He was one of the four Canadians featured in the book Tapestry Of War: A Private View of Canadians in the Great
War by Sandra Gwyn. He served under General Arthur Currie.
The architecture of the main house, often thoughht to be Spanish is actually Flemish, one of the areas in the European theatre
in which Agar fought during the First World War.
One of the treasures of the Adamson Estate are the great eastern white pine which
are ties to the heritage of the Admason/Cawthra families and that of the early development of Toronto Township now known as Peel
region.