Census Records
US federal census records are among the most important resources for genealogists. Conducted every ten years beginning in 1790, census records document individuals by name (in most censuses from 1850 forward), age, birthplace, occupation, relationships within the household, and a growing list of additional details in later census years. The 1940 federal census is the most recent fully released US census — census records are sealed for 72 years to protect privacy.
State and territorial censuses supplement the federal series, often taken in years between federal counts. The 1890 federal census was almost entirely destroyed in a fire and flood in 1921, creating a significant gap researchers must navigate using alternative records from that period. From 1880 onward, census records include relationship information that helps reconstruct household composition and family structures.
Vital Records: Birth, Marriage, and Death
Vital records — official government documents recording births, marriages, and deaths — are the backbone of genealogical research. In the United States, civil vital registration began at different times in different states; most states had systems in place by the early 1900s. Before civil registration, church records, county court records, and family Bibles are the primary alternatives.
Birth Certificates
Modern birth certificates list parents' names, birthplaces, occupations, and sometimes ages. Older records may be less detailed. Delayed birth registrations exist for many people born before vital records systems were established.
Marriage Records
Marriage licenses, bonds, certificates, and registers record the bride and groom's names, often their ages or birth years, witnesses, and the officiating minister or official. Marriage records frequently name parents and identify residence.
Death Certificates
Death certificates are genealogical goldmines: they typically list the deceased's name, date and place of death, cause of death, birth information, parents' names (including mother's maiden name), and the informant who provided the information.
Immigration and Naturalization Records
If your ancestors immigrated to the United States, immigration and naturalization records can document the journey in remarkable detail. Passenger lists (also called ship manifests) became increasingly detailed from the 1890s onward, listing not just the passenger's name but their hometown, destination, last residence, who they were joining, physical description, and financial resources. The detailed manifests of the 1906-1957 period are particularly valuable.
Naturalization records document an immigrant's path to US citizenship. Declaration of intention papers (sometimes called "first papers") and petitions for naturalization can include birth information, physical descriptions, witnesses, and details about the applicant's origins. Earlier naturalization records are simpler; post-1906 federal records are more standardized and detailed.
Military Records
Military service records document Americans who served in the armed forces from the Revolutionary War through modern conflicts. These records include service records, pension files, draft registrations, and discharge papers. Pension files from the Revolutionary War and Civil War are especially rich, often containing personal narratives, physical descriptions, family information, and financial details.
The National Archives and Records Administration (NARA) holds the major federal military record collections. A 1973 fire at the National Personnel Records Center in St. Louis destroyed many 20th-century Army and Air Force records, creating gaps for service between 1912 and 1964.
Where can I access records for free?
FamilySearch.org offers billions of free records. Ancestry.com provides free access at many public libraries. The National Archives (archives.gov) has digital access to federal records. State archives maintain their own digital collections, often freely accessible online.
What if the records were destroyed?
Substitute records often fill gaps left by destroyed originals. Tax records, church registers, local newspapers, school records, and DNA evidence can all provide information when primary vital records are unavailable. Many researchers find that an ancestor who seems undocumented in one record set appears clearly in another.
How do I read old handwriting?
Old German script (Kurrent/Sütterlin), Latin abbreviations, and 19th-century English cursive can be challenging. Online tutorials, alphabet guides, and genealogy community forums are excellent resources. Many genealogy platforms now offer automated handwriting recognition that has improved significantly in recent years.