The de Gannes-Cosby House in the Annapolis Royal Historic District is the oldest wood framed building in Canada.

Philipps Cosby was the captain of various British ships during the American Revolutionary War, Siege of Louisbourg and the Battle of the Plains of Abraham.

[4] From 1788 to 1809, the heirs of the Cosby family rented the house through Loyalist lawyer Thomas Henry Barclay, who had been given power of attorney.

[4] From 1809, the house was in the possession of the Reverend Cyrus Perkins, rector of St Luke's Church in Annapolis Royal.

[4] In 1983, the current family obtained the property, who have been major advocates of its place in Acadian, Nova Scotian and Canadian history.