Definition
Statistical tables used to estimate the probable duration of a person's life at a given age. Also called life tables or actuarial tables, they present calculated life expectancies based on age, derived from population mortality data. Courts and practitioners use mortuary tables to quantify damages in personal injury, wrongful death, and workers' compensation cases — particularly where the value of lost future earnings, loss of consortium, or the expected duration of a disability must be reduced to a present value.
The tables do not predict when any individual will die. They express statistical probabilities drawn from large populations, giving a court or jury a principled, evidence-based baseline for calculating what might otherwise be speculative future losses.
Common Language
Modern common usage (Wiktionary): "Mortuary" in common use refers to a place where bodies are kept before burial or cremation, or adjectively to anything relating to death or burial.
Historical common usage (Webster's 1913): Webster's defines "mortuary" as an adjective meaning "of or pertaining to the burial of the dead," and as a noun for a burial place or a customary gift claimed by a minister upon a parishioner's death.
The gap matters. A researcher encountering "mortuary tables" in a legal context might assume a connection to burial practices or funeral law. In legal usage, the term is strictly quantitative — statistical actuarial data used to value human life expectancy for damages purposes. The word "mortuary" here signals only the subject matter (mortality), not burial, funerary practice, or ecclesiastical custom.
Common Confusion
Mortuary tables, life tables, actuarial tables, and expectancy tables are often used interchangeably in legal sources, but the terminology is not always consistent across jurisdictions or eras. In older cases and treatises, "mortuary tables" is the preferred legal term. Modern practice and expert witnesses more commonly use "actuarial tables" or "life expectancy tables," drawing on published sources such as the U.S. Life Tables issued by the National Center for Health Statistics. Researchers should not assume that terminological differences signal substantive differences — the underlying function is the same.
Why It Matters in Research
Terminology drift is the primary research trap. Pre-twentieth-century cases use "mortuary tables" consistently; twentieth-century sources begin shifting to "life tables" or "actuarial tables"; contemporary damages litigation almost never uses "mortuary tables" at all. A corpus search confined to one term will miss large swaths of relevant authority.
The evidentiary status of these tables also evolved. Early cases treated their admissibility as contested — parties argued whether statistical life expectancy data was competent evidence at all, or whether it invaded the province of the jury. Later authority settled that properly authenticated life tables are admissible and routinely used, though courts differ on whether reference to them is mandatory, permissible, or merely advisory.
Jurisdictional variation in how life expectancy evidence interacts with damages calculations is significant. Some courts apply a single unified table; others permit separate tables for different demographic subgroups. The choice of table and the methodology for discounting future losses to present value remain live evidentiary issues in personal injury and wrongful death litigation.
Researchers working on damages law, tort valuation, or actuarial evidence should treat "mortuary tables" as the historical anchor term and follow the trail forward through "life tables," "actuarial tables," and "expectancy tables" to capture the full doctrinal arc.
Historical Dictionary Support
Black's Law Dictionary (1st and 2nd editions) define mortuary tables identically in substance: "tables for estimating the probable duration of the life of a party at a given age." Both editions anchor the definition to the same California authority. The definition is brief, functional, and uncontested across these sources — the dictionaries treat the term as settled and technical rather than legally contested.
Bouvier's Law Dictionary redirects the entry to "LIFE," reflecting an organizational choice rather than a substantive difference. Researchers using Bouvier's should follow that cross-reference, where life expectancy and related evidentiary matters receive fuller treatment.
Notably, none of the historical dictionaries address the evidentiary admissibility questions, the methodological disputes over which tables to apply, or the modern shift in terminology. For those questions, treatises on damages and the case law itself are the necessary sources.
Jurisdictional Note
Federal courts and most state courts treat published life expectancy tables as admissible evidence in damages litigation, but practice varies on whether specific government-issued tables carry presumptive weight or whether any actuarially sound table may be offered. A few jurisdictions have codified approved tables by statute or court rule. Researchers should verify local practice rather than assuming uniform admissibility standards.
Encyclopedia Cross-Reference
The available encyclopedia matches (Tax Tables and Computation, The Law Mind Tax Encyclopedia) are not substantively relevant to mortuary tables in the damages or tort context. No cross-reference is included.