Matthew Pitts gives his age as 40 on 1881, making his birth around 1840-41. Fits a Matthew on the censuses, place of birth Southery. In 1851 he is with his father William in Littleport.
Think this could be his baptism, although there is not a birth reg to match
Matthew Pitts
Baptism 5 Apr 1839, Southery
Father: William Pitts, labourer
Mother: Mary Ann Pitts