Our Catholic Heritage Archive is a ground breaking project that will eventually see as many as 100 million Catholic records published online for the first time ever. Since this is a new record set, we've put together this comprehensive guide to understanding your search results.

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Sacramental registers

Sacramental registers are the Roman Catholic Church's equivalent of the parish or parochial registers found in, for example, the Anglican Church, and what tend to be called metrical books in Russia and other parts of Eastern Europe.

While Anglican parish registers tend to comprise baptisms, banns, marriages and burials, Catholic sacramental registers give a different, sometimes narrower but sometimes wider array of event types.

Baptisms

Baptisms are core to these. As well as details of the baptism date (sometimes birth date too) and parentage, Catholic baptism registers usually record the sponsors, or godparents, of the child. These may or may not be close kin of the baptised person, but are always worth considering during research. Another feature of Catholic compared to Anglican baptism registers is the much higher proportion of adult baptisms, i.e. of converts to Catholicism.

Banns

Banns – declarations of the intention to marry – are not a common feature of Catholic record-keeping, as the banns is not a sacrament, but a largely administrative and legal feature (permitting members of the congregation to object if they observe an impediment to the forthcoming marriage).

Marriages

Marriage is, of course, a sacrament, and Catholic marriage registers give all the matrimonial information you might expect, sometimes more – those in America, for instance, often give details of place of origin of the bride and groom, which is tremendously useful for immigrant ancestors (as the place of origin overseas is often vital in prosecuting a successful search when the home land is, for example, Ireland, Italy, Lithuania, Poland or Slovakia).

Burials

Burials do not feature as frequently in collections of registers from Catholic churches – it is rare to see an unbroken run of burials, or deaths, coinciding with the baptisms and marriages for the same congregation. Anointing of the sick (extreme unction) is a sacrament in the Catholic Church but not one which produces regular records.

First Communion

First Communion (at the age of reason) and Confirmation (at the age of discretion) are important Catholic sacraments initiating the subject into the Church. Lists of communicants and confirmations are quite common, and usually give the age of the subject, from which approximate birth year can be calculated. Note that sometimes confirmation occurs only at a bishop's visitation – if such visitations were infrequent, then confirmation might occur at a later age than one might expect. Separate lists of Easter communicants may also be seen.

For genealogical research, these are bonuses, perhaps, rather than core records. Think, for instance, of situations where a Catholic child is born and baptised in another country but has his or her first communion and confirmation into the faith in the immigrant land. Whether such records are available for a particular church depends, of course, upon whether they were produced by the priest and whether they were preserved and deposited in the archive.

Other event types which sometimes occur in parish archives include anniversaries (memorials of the dead); censuses (of all Catholics in a diocese) convalidations (the Catholic blessing and recognition of a marriage which took place previously outside the Catholic Church); catechisms; conversions; mass intentions; confraternity lists; congregation lists (lists of souls); and Sunday School lists. Some of these may be culturally or geographically specific – they may feature in archival volumes from one archdiocese but not the next – and it is quite rare to find these in the collections being digitised for publication upon Find My Past. Generally, one should expect baptisms and marriages for a parish as a minimum and regard anything else is an unexpected extra.

Latin language

Latin was the everyday performative language of the Catholic Church and therefore record-keeping was traditionally in Latin. Towards the end of the 19th century, generally there was a gradual switch to the vernacular but it's not unusual to see mid- and late 20th century records still being composed in Latin. Some register formats are hybrid: for example, a printed register might have Latin column headers but the text written in by the priest will be in English or other language of the congregation.

The use of Latin is not usually too problematic, as the records for a particular time and place tend to follow a common format, meaning that the key elements can be extracted even when one isn't fully au fait with Latin. However, Latin can introduce some challenges for a genealogist not fully conversant with the dead language.

Firstly, Latin is a language in which proper nouns such as forenames may decline to show grammatical case. For example, depending on sentence structure, a male forename may be written in the nominative case (e.g. Jacobus), the accusative case (e.g. Jacobum), or the genitive case (Jacobi). The equivalents for women are Maria (nominative), Mariam (accusative) and Mariae (genitive).

Secondly, as you can see from the examples above, the priest may use the Latin version of the vernacular Christian name. For example, an Irish or Scottish Catholic James might be known as Jim, Jimmy or Seamus to family and friends and even to the priest, but he will appear in the register as Jacobus (as above). Of course, this can create problems of reverse translation – what if the child's name actually was Jacob for example? Moreover, most forenames in English have multiple equivalents in European languages – e.g. John has its counterparts in Evan, Giovanni, Hans, Ivan, Jan, Jean, Johan, Juan and Sean, to name but a few. To a Latin-speaking priest, all of these might be rendered as Johannes in the register.