She was born in Siena on April 25th. 1347 being the youngest of twenty five children. Her father, Giacomo Benincasa was a wealthy dyer and her mother Lapa was the daughter of a now forgotten poet. She was a happy child and a pious one who had a very special spiritual experience at about the age of six. When she refused, as a teenager, to even think about getting married, her family began to persecute her and she was treated as their Cinderella. Eventually, her father realised she would not be changed, he allowed her to have her way. Very soon she became well known for her devotion to the poor and needy of the town and won fame as an arbitrator, even attempting to heal the rift that had occurred in the papacy in 1378.
She was summoned to Rome as an advisor to the then Pope Urban. There she died on April 21st. 1380, aged 33. The picture is of the statue of St. Catherine in St. Catherine's Church, Lowton. Her feast day is celebrated on April 29th. There is no other church in the Liverpool Archdiocese with her as patron.
There is no record as to why she was chosen to be the patron saint of this parish. The story goes, however, that when the land was bought for the original church in 1930, a lady named Catherine made a substantial donation towards the cost.
Catholic Encyclopedia: http://www.newadvent.org/cathen/03447a.htm