Rollinon and/or Rawlinson and Bolton

[YukonHall]

 
Between the spelling and the name John I am completely mazed by this side of my family.  They came from Bolton and were at some point Butchers.  James Rollinson born 1833 married Eliza Blagg of Nottingham in 1852 at Deane Church.  He was recorded as James Rawlinson.  His father was John Rollinson/Rawlinson and I think his mother was Jane Barret, they married in 1814 at Saint Peters Bolton.  James three sisters were recorded baptised at St Peter's but not James I can't find any record of his birth or christening.  The family seems to be in Blackrod, Horwich area too but I don't think we are closely related.

I am looking for someone else doing the Rollinson/Rawlinson Name who might have untangled us or at least has information we can compare?
Frances