Abbreviations and Acronyms

Short for weblog, a blog is a personal online journal that is frequently updated and intended for general public consumption. While not specific to genealogy, many rootseekers read or write Blogs to share information.
Abbreviation for Deoxyribonucleic acid—the molecule that contains each individual cell’s genetic code, organized into 23 pairs of chromosomes.
Enumeration District. The area over which one census enumerator delivers and collects census forms.
Ellis Island Database – - free online search site for Port of New York passenger arrival records from 1892-1924.
et al.
Latin for änd others."
et ux.
Latin abbreciation for "and wife".
Freedom of Information Act - a law ensuring public access to U.S. government records.
An acronym for Family History Center, local outposts of the Jesus Christ of Latter-day Saints’ Family History Library, the biggest private genealogical library in the world.
Family History Library (the largest genealogical library in the world in Salt Lake City, UT);
An acronym for GEnealogical Data COMmunications, a standardized file for family tree data that can be read by any genealogy software. Enables data sharing without manual reentry.
International Genealogical Index – Index 400+ million names submitted to or extracted from records microfilmed by the Church of Jesus Christ of Latter-day Saints.
Most Recent Common Ancestor
National Archives and Records Administration - U.S. repository for historical documents. The main branch is located in Washington, DC ; with several regional branches across the country.
An index containing information for Americans whose deaths were reported to the Social Security Administration (SSA). Most of the information is from 1962 to the present
Updated: 17 May 2019.