LDS Family History: Why Genealogy Matters in the Church

Why Genealogy Is a Religious Practice for Latter-day Saints

Family history research is woven into the fabric of Latter-day Saint practice and is one of the most distinctive characteristics of the faith. Members are encouraged, even expected, to research their family tree, locate their ancestors, and then perform vicarious temple ordinances—proxy baptism, endowment, and sealing—on their behalf. This practice has made The Church of Jesus Christ of Latter-day Saints one of the world's leading institutions in genealogical research and has created a unique culture where knowing one's ancestors is a spiritual priority.

The scriptural foundation is found in Malachi 4:5-6, which Latter-day Saints cite constantly: "Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the Lord: And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers, lest I come and smite the earth with a curse." This passage, referred to as the turning of the hearts of the fathers and children, is interpreted as a prophecy that family bonds and family history work would be restored in the latter days.

The book of Doctrine and Covenants 128:15, 18 elaborates on this principle: "For their salvation is necessary and essential to our salvation...Welding together of dispensations, and keys, and powers, and glories should be in us." Family history work is understood as essential to salvation—not just for the dead but for the living as well. By engaging in family history research and proxy ordinances, members bind themselves to their ancestors spiritually.

FamilySearch: The World's Largest Genealogy Database

This religious imperative led to the creation of FamilySearch, operated by The Church of Jesus Christ of Latter-day Saints. FamilySearch is the world's largest free genealogical database, containing billions of historical records, family trees, and digitized documents. The database is available online to anyone, anywhere in the world, at no cost. Members and non-members alike use FamilySearch for genealogical research. The database includes digitized records from around the globe—birth, marriage, and death certificates, census records, church records, land records, and countless other documents that help people find and connect to their ancestors.

The scale of FamilySearch is staggering. As of 2026, it contains billions of names, millions of digitized documents, and millions of family trees. The church has spent decades microfilming and digitizing records from countries worldwide, often with the cooperation of foreign governments and institutions. This commitment reflects the belief that all the dead deserve the opportunity to receive the gospel and temple ordinances.

The Granite Mountain Records Vault

The Granite Mountain Records Vault is a physical archive located about 20 miles south of Salt Lake City. It is built inside a mountain in a climate-controlled, security-protected facility. The vault stores millions of microfilmed genealogical records from around the world, organized in drawers and carefully preserved. The facility is built to withstand earthquakes, flooding, and other disasters. Access is restricted to authorized personnel, and the records are protected as among the church's most precious assets.

The existence of the Granite Mountain vault reflects the church's long-term commitment to genealogy and its belief in the importance of these records for the work of proxy ordinances. Members can request to view records from the vault, which are then microfilmed or digitally scanned and made available. Over time, many of these records are being digitized and added to FamilySearch.

How to Get Started with Family History

The Family History Library in Salt Lake City, operated by the church, is the largest genealogical library in the world, open to the public. Members and researchers can visit and access resources to research family history. The library employs trained genealogists who provide assistance. Many smaller branches of the Family History Library exist in stakes and wards (regional and local congregations) worldwide, where members can access the digital collection and receive guidance on their research.

The experience of doing family history is described by members as deeply spiritual. Stories abound of members finding lost family records, discovering unexpected connections, or experiencing vivid spiritual impressions while researching ancestors. Some describe feeling the presence of ancestors, or receiving guidance about which lines to research next. Whether these are literal spiritual communications or the work of intuition and the subconscious mind, members take them seriously.

Once an ancestor's name has been identified through genealogical research, a member can request to perform proxy ordinances for that person in the temple. The church provides standardized forms and a system to ensure that proxy ordinances are performed, that the deceased person's name is not performed for more than once, and that work is done respectfully and reverently. Members often perform the ordinance for an ancestor whose name they have researched and discovered, creating a personal spiritual connection to the work.

The church has policies in place to prevent abuse of the practice. Following controversy in the 1990s when names of Holocaust victims were submitted for proxy baptism, the church now restricts proxy ordinances to direct ancestors. Names of famous individuals from other faiths are not accepted for proxy work. These policies help ensure that the practice is respectful and does not desecrate the memory of those of other faiths.

Family history research has become increasingly important in recent decades. The church has made it a formal priority, with curriculum focused on teaching members how to research and with talks from church leaders emphasizing its importance. Young people are encouraged to begin researching their family history early. The church has digitized millions of records and made them searchable online, making family history research accessible to anyone anywhere.

For Latter-day Saints, family history is not merely a hobby or an interesting historical project. It is a spiritual practice that connects them to generations past, that prepares the way for deceased relatives to accept the gospel and receive sacred ordinances, and that strengthens family bonds across time and space. It is a visible expression of the belief that the family is eternal and that all generations are bound together in God's plan.