Can't find him in 1851. I think this is him in 1861. There are lots of Robinsons and I stopped at the first one that looked like an Edwin.
RG9 2918 22 sched 207
6 Half St
Edwin Robinson,head,m,24,Mechanic, Reddish(?) Lancs
Catherine ,wife,m,20, Glasgow Scotland
Thomas , son,1, Salford
If you don't think this is him I'm happy to check further.
And here are the other people with Hannah Brunt
Reference should have been RG9 2924 103. They are enumerated as 4 separate schedules all at the same address
Sched 164
Robert Mason,head,m,48,Coal Dealer,Lancs Cartmell
Mary ,wife,m,43, Lancs Garstang
Betsy ,dau u,19, Cotton Weaver,Lancs Salford
Richard ,son,u,14,Machine Minder (or Winder), Lancs Salford
John ,son,11 Lancs Salford
Agnes ,dau,8 Lancs Salford
Mary ,dau,5 Lancs Salford
Sarah(?) ,dau,2 Lancs Salford
Sched 165
Hannah Barbour,lodger,u,30,Cotton Weaver,Manchester
Sched 165A
John Leatham(?),lodger,widower,76,Silk Weaver,Bolton (or did he mean Buxton?)
Sched 165B
Hannah Brunt