Hi everyone,
Thanks for the differing possibilities, Rosanna was married in the census of 1871 to Peter Proctor, and then the census of 1881 married to James Cuerden, no William Kelly.
There is the added problem that I do not no know her mother's name and I have asked the family. There seems to be very little known about Rosanna's time in Boston. I have looked at the passenger lists and they are very sketchy. I did find William at the Proctor Household in 1861 along with Rosanna, this was in Salmesbury, part of Preston, which is not far from Blackburn and Darwen where Rosanna lived later on with two sisters during her time in Darwen and working in a mill before her first marriage in Accrington.
I am so grateful for all the input from everyone, It leads me to believe that something happened between the census years 1871 and 1881.
Cheers