McCann family - Tullylish

I am looking for any details on the McCann family - Mary McCann married Michael Molloy in Tullylish in 1857 and was born around 1835. She had a brother called Francis McCann - and I believe she was from this area. We have a picture from the 1890s/1900s of a young girl called Annie McCann - who is probably about 20 in the picture. The family moved to Belfast about 1861 but there children - Elizabeth and William Henry are born in the Banbridge/Tullylish areas