| Cemetery records and grave markers | Birth and death dates, family groupings by plot, plot purchasers | 1600s onward | Cemetery office or sexton's books; town clerk for older burying grounds | Stones are sometimes carved years later from memory; plots hold in-laws under unfamiliar surnames |
| Church and parish registers | Baptisms, marriages, and burials from before civil registration; godparents and sponsors | 1600s onward, wherever congregations kept books | The congregation itself, its denomination's archive, or a regional historical society | Registers move when churches merge or close; some are in the congregation's original language |
| City directories | Street address, occupation, employer, spouse's name; a widow listed alone signals a death | Annual volumes, mid-1800s to late 1900s in most cities | Public library local-history rooms and state historical societies | A missing year may just mean a missed canvasser, not a move or a death |
| County deeds, wills, and probate | Land ownership, heirs, married daughters' new surnames, approximate death dates | Colonial era to present | County recorder, clerk, or probate office; older volumes often moved to state archives | Burned counties; index-only searching misses the loose papers where families hide |
| Federal census | Household members, ages, birthplaces, occupations; relationships and parents' birthplaces in later years | Every ten years from 1790; open to the public through 1950 | National Archives; microfilm and copies at large libraries and state archives | Ages drift, spellings wander, and the 1890 schedules were almost entirely destroyed by fire |
| Military service and pension files | Birth date and place, physical description, and family members named in pension claims | Revolutionary War through the twentieth century | National Archives; state records for militia and guard units | Service and pension files are separate requests; a major fire destroyed many twentieth-century Army personnel files |
| Newspapers (obituaries and notices) | Death dates, survivors' names and towns, marriages, anniversaries, reunions | 1700s onward; thickest coverage after the mid-1800s | State archives, historical societies, and local library microfilm collections | Small-town weeklies are often unindexed; obituaries flatter and omit |
| Passenger lists and naturalization papers | Arrival year, ship, port, and — on later lists — the origin town and relatives left behind | Federal passenger lists from 1820; naturalization standardized in the early 1900s | National Archives and federal court records; pre-standardization naturalizations in any local court | Names were recorded at the port of departure, not changed on arrival; families often crossed more than once |
| State vital records (birth, marriage, death) | Exact dates and places, parents' names, maiden names, causes of death | Statewide registration mostly begins late 1800s to early 1900s, varying by state | State vital records office; older entries often at the county or the state archives | Recent records are privacy-restricted; death certificates repeat whatever the informant believed |