Found the following burial of a Joseph Sowerby on Ancestry.ca in the Drouin Collection (French Canadian records): 1810, Quebec Cathedrale Anglicane, PQ Joseph Sowerby Gunner in the Fourth Battalion of the Royal Regiment of Artillery aged 23 years died November the tenth and was buried November the twelfth inthe year of our Lord one throusand eight hundred and ten. by me, Father Jehosaphat Mountain, Deputy Chaplain to the Garrison of Quebec. present: H. Pond (?) Captain R. Artillery and A.J. Armstrong Lieut. Col (?) Joseph would be born approx. 1787. If anyone thinks this Joseph might belong to their family tree, the army records for this individual should be at Kew in London.