My GG-Grandfather, Thomas Bickerdike, was born 18 Jan 1816 in the City of York. He came to Canada at some point but it is not clear when. He may have come with his parents about 1820 or by himself at a later date.
I don't know the names of his parents or the parish in which he was born. (I am assuming that the city of York consists of more than one parish, but would appreciate being corrected about that.)