Probably easiest to ask a moderator to move this to another board (click on the "report to moderator" button), but having a quick look at Martha's family in the 1851 census I'm not sure which board! They seem to come from all over, so maybe yes - the England board.

You probably have this already, but this is the family in 1851 at Bexley St, Salford
William Peeling 29 Salford, Lancashire
Mary Peeling 29 London
Ellen Peeling 2 Salford
Ann Guest Sis/Law 34 London
John Guest Bro/Law 32, Wiltshire
Sarah Guest Sis/Law 30 Salford
Mary Guest Niece 10 Salford
Sarah Guest Niece 1 Shrewsbury
Martha Guest Niece 4 Chester, Cheshire
Thomas Guest Nephew 14 Salford
HO107/2223 / 0
William PEELING married Mary GUEST in 1848. So it looks like Ann (c1817), John (c1819) and Mary (c1822) were siblings. Do you know who Mary's father was on her marriage?
Modified to add:
Sorry Rosie, you posted while I was typing
