I might be wrong, but do you mean Maria KELLY who married James MORRIS in Sept qtr 1896 in Sheffield (9c/854)? They can be found on the 1901, 1911, 1921 censuses in Sheffield with children Mary Ann, James, John and Francis. James snr is a policeman, both James MORRIS and Maria (nee KELLY) are born Sligo.
In 1891 James MORRIS, policeman, 28, is boarding with Thomas SEMPER and family in Sheffield.
RG12/3827/ 54 pg12
A few options for Maria in the 1891 census.
