Hi Iria
There are only two Harolds indexed in Birkenhead 1861.
RG9-2643-FOLIO 34 98 Victoria St Birkenhead
Robert Harold 45 grocer & provisions dealer born Liverpool
Catherine 35 Mollington
Elizabeth 13 Liverpool
John 8 ~
James 5 Tranmere
RG9-2641-FOLIO 127 5 Barton Cottages Birkenhead
Peter Harold 40 dock labourer Ireland
Mary 35 ~
James 13 Birkenhead
Owen 11
Thomas 9
William 6
Charles 4
Peter 1 month
regards
peterbennett