Until there is proof re Maria's actual maiden name from one of her children's birth certificates for instance, which marriage is Henry's and Maria's can't actually be proved.
e.g. 1861 gives 4 of their children. The surname is wrong on the census page it isn't an indexer's mistranscription.
1861 census RG9 2136 folio 134
Latimer Street South Court Birmingham Warwickshire
Henry Morrison 36 Blokwith, Staffordshire, Head Married Keeper of cows
Maria Morrison 34 Madeley, Shropshire, Wife Married Housekeeper
Harry Morrison 9 Birmingham, Warwickshire, Son
Elizabeth Morrison 7 Birmingham, Warwickshire, Daughter
Emma Morrison 5 Birmingham, Warwickshire, Daughter
Lucy Morrison 2 Birmingham, Warwickshire, Daughter
Lucy's birth certificate looks a reasonably safe bet
Births Dec 1858
Harrison Lucy Ann Birmingham 6d 52
Regards
Valda