I wonder if the visitor Ann Hughs aged 13 in 1851 is their grand daughter? Aged 3 in 1841 she is at Double Row with parents William (25) and Elizabeth (29) and there is this marriage
26 Oct 1835 Halesowen
William Hughes otp bach and Sarah Guest otp spin
Wit: Job Mason and Elizabeth Dimmock
In case you don't have it (since they are down as Quest on Ancestry) on the next but one page are
1841
Double Row
James Guest,65,nailer,y
Sarah ditto,55,y
Daniel ditto,15,coal miner,y
Ann ditto,15,y
Isaach? ditto,10,y(no idea what that name is but male)
John Guest,30,coal miner,y
Maryann ditto,30,n
Emma ditto,12,y
Pricilla ditto,8,y
John ditto,1,y
HO107/1196-16