What is the Gedcom format and standard? How are Gedcom files structured? Let's take a look
The Gedcom format and standard were developed by The Church of Jesus Christ of Latter-day Saints (the Mormons) to facilitate the easy exchange of computerized genealogy data between different software and websites.
We refer to "Gedcom" as the abbreviation for GEnealogical Data COMmunication - that is, Genealogical Data Communication.
Gedcom files are simply text files that genealogy software and websites can integrate, read, and save. They allow you to group all information about a person, a family, events, sources, or even notes.
These files are encoded in several ways: in ANSEL, ANSI, Macintosh, MS/DOS, UTF-8... Note that most current software (including Geneafinder) recommends using UTF-8 to use all existing characters.
You will first find a header section that groups information such as the website or software used to create this gedcom, the encoding format, or the language used.
Next, when creating a person, a unique identifier will be assigned to them (INDI tag) and their information will be nested under their identifier. This way, they will be properly linked to their events and dates.
A family is created through a link that connects two people (two possible tags: FAMS for parents or FAMC for children).
In addition to individual or family identifiers, Gedcom also consists of several tags that you can find as fields to fill in on your website or genealogy software.
Here is the list, from the Genealogy Guide:
Tag |
Full Name |
Description |
ABBR |
ABBREVIATION |
Abbreviated name of a title, description, or name. |
ADDR |
ADDRESS |
Contemporary location, generally required for postal purposes, of an individual, an informant, a reference, a business, a school, or a business. |
ADR1 |
ADDRESS 1 |
The first line of an address. |
ADR2 |
ADDRESS 2 |
The second line of an address. |
ADOP |
ADOPTION |
Related to the creation of a parent-child relationship that does not exist biologically. |
AGE |
AGE |
The age of the person at the time an event occurred, or the age indicated in the document. |
ALIA |
ALIAS |
An indicator for linking different records of a person who may be the same person. |
ANCE |
ANCESTORS |
Related to the ancestors of an individual. |
ANUL |
ANNULMENT |
Declare a marriage null from the beginning (never existed). |
ASSO |
ASSOCIATED |
An indicator for linking friends, neighbors, relatives, or associates of an individual. |
AUTH |
AUTHOR |
The name of the person who created or compiled the information. |
BAPL |
BAPTISM-ESDJ |
The baptism event performed at the age of eight or later by the authority of the priesthood of the Church of Jesus Christ of Latter-day Saints (See also BAPM) |
BAPM |
BAPTISM |
The baptism event (not ESDJ), performed in early childhood or later. (See also BAPL and CHR) |
BARM |
BAR_MITZVAH |
The ceremony organized when a Jewish boy reaches the age of 13. |
BASM |
BAS_MITZVAH |
The ceremonial event organized when a Jewish girl reaches the age of 13, also known as "Bat Mitzvah." |
BIRT |
BIRTH |
The event of entering life. |
BLES |
BENEDICTION |
A religious event of granting divine care or intercession. Sometimes given as part of a baptism ceremony. |
BURI |
BURIAL |
The event or ceremony of proper disposal of the mortal remains of a deceased person. |
CALN |
PHONE NUMBER |
Phone number. |
CAST |
CASTE |
The name of the rank or status of an individual in society, based on racial or religious differences, or differences of wealth, inherited rank, profession, occupation, etc. |
CAUS |
CAUSE |
A description of the cause of an event or fact associated with it, such as the cause of death. |
CENS |
CENSUS |
The event of periodic counting of the population for a designated location, such as a national or state census. |
CHAN |
CHANGE |
Indicates a change, correction, or modification. Generally used with a DATE to specify when an information change occurred. |
CHAR |
CHARACTER |
An indicator of the character set used to write these automated information. |
CHIL |
CHILD |
The natural, adopted, or sealed (ESDJ) child of a father and mother. |
CHR |
BAPTISM |
The religious event (not ESDJ) of baptizing and/or naming a child. |
CHRA |
ADULT_BAPTISM |
The religious event (not ESDJ) of baptizing and/or naming an adult person. |
CITY |
CITY |
A lower-level jurisdictional unit. Normally an incorporated municipal unit. |
CONC |
CONCATENATION |
An indicator that additional data belongs to the higher value. The information of the CONC value must be linked to the value of the previous higher line without space and without carriage return and/or line break. Fractional values for a CONC tag must always be split at a non-space. If the value is divided on a space, the space will be lost during concatenation. This is due to the treatment spaces receive as a GEDCOM delimiter, many GEDCOM values are cut from trailing spaces and some systems search for the first non-space beginning after the tag to determine the start of the value. |
CONF |
CONFIRMATION |
The religious event (not ESDJ) of conferring the gift of the Holy Spirit and, among Protestants, full adhere to the church. |
CONL |
CONFIRMATION_ESDJ |
The religious event by which a person becomes a member of the Church of Jesus Christ of Latter-day Saints. |
CONT |
CONTINUATION |
An indicator that additional data belongs to the higher value. The information of the CONT value must be linked to the value of the previous higher line by a carriage return and/or newline character. Leading spaces may be important for the formatting of the resulting text. When importing values from CONT lines, the reader must assume only one delimiter character after the CONT tag. Assume that the rest of the leading spaces must be part of the value. |
CORP |
BUSINESS |
Name of an institution, agency, society, or company. |
CREM |
CREMATION |
Elimination of the mortal remains of a deceased person by fire |
CTRY |
COUNTRY |
The name or code of the country. |
DATA |
DATA |
Related to automated information stored. |
DATE |
DATE |
The date of an event in a calendar format. |
DEAT |
DEATH |
The event of the end of the person's life. |
DESC |
DESCENDANTS |
Related to the offspring of an individual. |
DEST |
DESTINATION |
A system receiving data. |
DIV |
DIVORCE |
An event of dissolution of a marriage by civil action. |
DIVF |
DIVORCE_FILE |
An event of divorce filing by a spouse. |
DSCR |
PHYSICAL_DESCRIPTION |
Physical characteristics of a person, place, or thing. |
EDUC |
EDUCATION |
Indicator of a level of education achieved. |
|
|
|
An electronic address that can be used for contact such as an email address... |
EMIG |
EMIGRATION |
An event of leaving one's country of origin with the intention of residing elsewhere. |
ENDL |
ENDOWMENT |
A religious event where an endowment ordinance for an individual has been performed by the authority of the temple priesthood in a temple of the Church of Jesus Christ of Latter-day Saints. |
ENGA |
ENGAGED |
An event of recording or announcing an agreement between two people to marry. |
EVEN |
EVENT |
A remarkable event linked to an individual, group, or organization |
FACT |
FACT |
Related to an attribute or remarkable fact about an individual, group, or organization. A FACT structure is generally qualified or classified by subordinate use of the TYPE tag. |
FAM |
FAMILY |
Identifies a legal relationship, or any other customary relationship between a man and a woman and their children, if any, or a family created by the birth of a child to his biological parents. |
FAMC |
FAMILY_CHILD |
Identifies the family in which an individual appears as a child. |
FAMS |
FAMILY_SPOUSE |
Identifies the family in which an individual appears as a spouse. |
FCOM |
FIRST_COMMUNION |
A religious rite, the first act of sharing the Lord's Supper during church worship. |
FILE |
FILE |
A place for storing ordered and organized information for preservation and reference. |
FORM |
FORMAT |
Name given to a consistent format in which information can be transmitted. |
GEDC |
GEDCOM |
Information about the use of GEDCOM in a transmission. |
GIVN |
FIRST_NAME |
A given or earned name used for the official identification of a person. |
GRAD |
GRADUATION |
An event of conferring diplomas or degrees to individuals. |
HEAD |
HEADER |
Identifies information related to an entire GEDCOM transmission. |
HUSB |
HUSBAND |
A person in the family role of a married man or father. |
IDNO |
IDENTIFICATION_NUMBER |
A number assigned to identify a person within an important external system. |
IMMI |
IMMIGRATION |
An event of entering a new location with the intention of residing there. |
INDI |
INDI |
A person. |
LANG |
LANGUAGE |
The name of the language used in communication or information transmission. |
LATI |
LATITUDE |
Value indicating a coordinate position on a line, plane, or space. |
LEGA |
LEGATEE |
Role of a person acting as a person receiving a legacy or bequest. |
LONG |
LONGITUDE |
Value indicating a coordinate position on a line, plane, or space. |
MAP |
MAP |
Refers to a representation of measurements generally presented graphically. |
MARB |
BANS |
An event of official public notice announcing that two people intend to marry. |
MARC |
MARRIAGE_CONTRACT |
An event of recording a formal marriage agreement, including the prenuptial agreement in which the marriage partners reach an agreement on the rights of ownership of one or both, ensuring property to their children. |
MARR |
MARRIAGE |
A legal, customary, or customary event of creating a family unit of a man and a woman as husband and wife. |
MEDI |
MEDIA |
Identifies information about the media or related to the medium in which the information is stored. |
NAME |
NAME |
A word or combination of words used to help identify a person, title, or other element. More than one NAME line must be used for persons known by more than one name. |
NATI |
NATIONALITY |
From the birth country of an individual or from the nationality of his parents. |
NATU |
NATURALIZATION |
The event of obtaining citizenship. |
NCHI |
NUMBER_OF_CHILDREN |
The number of children for whom this person is known to be a parent (all marriages) when subordinate to an individual, or who belong to this family when subordinate to a FAM_RECORD |
NICK |
NICKNAME |
A descriptive or familiar name that is used instead of or in addition to one's own name. |
NMR |
MARRIAGE_NUMBER |
The number of times this person has participated in a family as a spouse or parent. |
NOTE |
NOTE |
Additional information provided by the sender to understand the attached data. |
OBJE |
OBJECT |
Related to a set of attributes used to describe something. Generally refers to the data necessary to represent a multimedia object, such as an audio recording, a photograph of a person, or an image of a document. |
OCCU |
OCCUPATION |
The type of work or profession of an individual. |
ORDN |
ORDINATION |
A religious event in which authority is received to act in religious matters. |
PHON |
PHONE |
A unique number assigned for access to a specific phone. |
PLAC |
PLACE |
A jurisdictional name for identifying the location or site of an event. |
POST |
ZIP_CODE |
Code used by a postal service to identify an area to facilitate mail processing. |
PROB |
PROBATE |
Event of judicial determination of the validity of a will. May indicate several related legal activities at different dates. |
PROP |
PROPERTY |
Relating to possessions such as real estate or other properties of interest. |
QUAY |
DATA_QUALITY |
An evaluation of the certainty of the evidence supporting the conclusion drawn from the evidence. |
RELA |
RELATION |
A relationship value between the contexts indicated. |
RELI |
RELIGION |
A religious confession to which a person is affiliated or for which a file applies. |
RESI |
RESIDENCE |
Action of living at an address for a certain time. |
RETI |
RETIREMENT |
Event of leaving a professional relationship with an employer after a reference period, mostly to cease all professional activity |
ROLE |
ROLE |
Name given to a role played by an individual in relation to an event. |
SEX |
SEX |
Indicates the sex of an individual - male or female. |
SOUR |
SOURCE |
The initial or original material from which information was obtained. |
STAE |
STATE |
Geographical division of a larger jurisdiction area, such as a state within the United States of America. |
STAT |
STATUS |
An assessment of the state or condition of something. |
SUBM |
AUTHOR |
An individual or organization that provides genealogical data to a file or transfers it to someone else. |
SURN |
SURNAME |
A family name transmitted or used by the members of a family. |
TIME |
TIME |
A time value in 24-hour format, including optional hours, minutes, and seconds, separated by two dots (:). Fractions of seconds are displayed in decimal notation. |
TITL |
TITLE |
A description of a specific work or other work, such as the title of a book when used in a source context, or a formal designation used by an individual in relation to positions of royalty or other social status, such as Grand Duke. |
TRLR |
TRAILER |
At level 0, specifies the end of a GEDCOM transmission. |
TYPE |
TYPE |
A supplement to the meaning of the associated higher tag. The value has no computer processing reliability. It is rather a short note of one or two words that must be displayed whenever the associated data is displayed. |
VERS |
VERSION |
Indicates which version of a product, item, or publication is used or referenced. |
WIFE |
WIFE |
A person playing the role of mother and/or married woman. |
WILL |
WILL |
Legal act assimilated to an event, by which a person disposes of his estate, to take effect after his death. The date of the event is the date when the will was signed by the person while alive. (See also PRObate) |
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