Bowler Family. - Parish Unknown

Greetings,

My great grandfather's name was Harry Bowler born in either 1879 or 1880. All of his records indicate that he was born in Ireland. Though I do not know which county.      

His father is listed as Thomas Bowler, born in Ireland, on his Ontario, Canada marriage certificate.

His mother is listed as Mary (last name unknown) on his marriage certificate.                            

There is very little know about Harry. He had a brother James and a sister named Sarah.  He emigrated to Canada sometime before 1911.

In the 1911 Canadian Census he lists his religion as Presbyterian and in the 1921 Canadian Census, he lists his religion as Methodist.

I know there isn't a lot to go on. He has been my brick wall for almost twenty years. Thank you for any help.  

Regards, Vanessa