Parish records are a great source of information for checking historical information about baptisms, marriages and burials.
Manchester Libraries, Information and Archives is the Diocesan Record Office for the Diocese of Manchester. Central Library cares for the historical records and registers of parishes, including those of redundant parishes.
Most parish registers of the Diocese of Manchester (including Manchester Cathedral) are now available online at ancestry.co.uk.
This includes digitised original registers and a name index of baptisms (1500s-1915), marriages (1500s-1930) and burials (1500s-1985). Free access to ancestry.co.uk is available from any Manchester City Council library. Parish registers are not always complete and in some cases registers are still held by parishes.