Where is the Gillingham Family IN Toronto Canada

John Gillingham was born 1805 England. His wife, Elizabeth was born 1800 England. Their children, Charles,born c.1832; Mary,born c. 1834; Sarah,born c.1836; John,born c.1839; and William born c.1842. The first three were born in Toronto area. I can't find the births of charles, Mary and Sarah. The family is in the 1837 directory of Toronto. They moved to Niagara Co., New York 1839. How do I find their birth place in England? Their religion was probably Church of England.