The term 'death records' generally applies to the registry of deaths maintained by the city, county, or state.
However, deaths may be recorded in dozens of locations. Some give precise dates while others provide us with a
'dead by' date. In other words, we may not know the exact date of death, but we know someone was 'dead by'
the date their will was probated, when their 'heirs' are listed in a document, or when a woman is addressed
as a 'widow'. These not-quite-perfect sources at least give us a reference point to work from.