Normally Christian was girl's name
However per the IGI, the Christian Lewin christened on May 11 1817 is a male.
Note that in 1841, Christ Lewin 20 was living with Mary Lewin.
Mary married William Shimmin in June 1841.
In 1851 Christian Lewin, 27, is a sistei-in-law in their household. Both Mary & aChristian are dressmakers.