can anyone help ,i have just recieved a marriage cert for my 3x great grand parents. michael mcghee born 1827 ireland and mary ann hill born 1829 yardley married 1848 north harborne staffordshire, michaels father patrick and mary ann father william both deceased,patrick labourer william polisher. have them on later census but cannot find them on the 1851 also cannot find mary on the 1841 any help would be great, michaels surname is spelt aa few different ways thanks