Definition
A connective term used in legal instruments, court orders, pleadings, and records to indicate that what follows occurred as a result of, in consequence of, or immediately after what preceded. Functionally interchangeable with "upon which" and "after which," whereupon signals a sequential or causal relationship between two events, acts, or findings. It links a prior event to a subsequent one, often marking the transition from a recital of circumstances to a resulting action, judgment, or order.
In practice, whereupon appears most often in: (1) court records and judgments, connecting a procedural event to its immediate consequence ("the jury returned its verdict, whereupon the court entered judgment"); (2) formal instruments such as deeds or contracts, connecting a triggering condition to a resulting obligation or right; and (3) legislative and regulatory text, linking a factual predicate to an authorized response.
Common Language
Modern common usage (Wiktionary): "After which, in consequence. Upon which."
Historical common usage (Webster's 1913): "Upon which; in consequence of which; after which."
The common and legal meanings are closely aligned, but the gap worth noting is one of register and weight. In ordinary writing, whereupon is a transitional connective with mild rhetorical force. In legal instruments and court records, it carries structural significance — identifying the precise moment at which a legal consequence attaches to a preceding act or finding. A researcher reading historical records should treat it as a functional marker, not mere stylistic flourish.
Why It Matters in Research
Whereupon is a structural word, not a substantive one, but its placement in historical legal documents carries navigational value. When reading older court records, enrolled orders, or common law pleadings, whereupon often marks the exact hinge between a recital of facts or procedure and the court's formal response — making it a useful signal when scanning dense historical text for the operative portion of an entry.
In searching historical corpus materials, researchers should be aware that whereupon was more prevalent in formal legal writing of the eighteenth and nineteenth centuries than it is today. Modern drafting practice has largely replaced it with "upon which," "following which," or simple restructuring of the sentence. Encountering whereupon in a historical document is not archaic usage — it was standard — but its relative scarcity in contemporary drafting means that modern legal search tools trained on recent materials may underweight its significance in older sources.
The term's interchangeability with "upon which" and "after which" is consistently confirmed across both historical dictionaries and general usage, which simplifies interpretation. There is no known jurisdictional split in meaning. However, researchers parsing the sequence of events in historical proceedings should note whether the whereupon relationship is strictly temporal (A happened, then B happened) or also causal (B happened because of A) — the word supports both readings, and context determines which applies.
Historical Dictionary Support
Anderson's Dictionary of Law and Bouvier's Law Dictionary are in complete agreement: both define whereupon as denoting sequence, succession, order of action, and relation, describing it as a thing done with reference to something previously done, and both confirm its interchangeability with "upon which" and "after which." Bouvier cites a Wyoming case for support, though the citation (1 Wyo. 419) is offered without further elaboration on the specific interpretive point.
Neither dictionary treats the term as ambiguous or contested, and neither identifies any specialized meaning that varies from its general English sense. This alignment across common and legal usage is unusual enough to note: whereupon is one of the few connective terms in legal drafting whose legal meaning does not meaningfully diverge from its ordinary meaning — the dictionaries simply confirm that courts and instruments use it precisely as ordinary writers do, with the added function of marking a legally operative transition.
What the historical dictionaries do not address is the word's role in the structural grammar of enrolled court orders and judgment rolls, where it performed a nearly formulaic function. Researchers working in pre-twentieth-century court records will find it used with enough consistency that it reliably signals the operative consequence following a recited event.