Looking for Peter Brennen of Hemmingford Quebec

My name is Hugh Brennen , I am looking for information on my GGGG Grandfather Peter Brennen or Brennan. The info I have found so far is that Peter was born in 1796 in leitrim, Ireland .He came to Canada before 1833 and settled in Hemmingford Quebec.He married Ann Rutledge from Ile de Montreal. They had a son Micheal and a daughter Maria.Peter married again to a Catherine McCauley.Micheal worked with a firm laying the railroad westward.When it the rail coming east it was in Hamilton where he planted his roots and got marrie3d to Sarah Scott in 1855.I have alot more to tell of this story, I will add later.