Looking for Parents Names for Isaac Stewart N B Canada

Hi, I,m looking for the parents names of Isaac Stewart, born June 03/1854 or 1852. He was married to Mary Ann Miller, born August 30/1859. They lived in Queens County,N.B.,Canada. Isaac would be my Great Great Grandfather. If anyone has any information on Isaac or where I might find his parents names. I believe they were born in Scotland. Thanks in advance........Nathan