Definition
A letter carrier is a person employed by the postal service to deliver mail — letters, packages, and other postal matter — from a post office to the addresses of recipients, and in some configurations to collect outgoing mail from residences, businesses, or public collection boxes. In federal employment law contexts, the term carries specific significance because letter carriers have been the subject of congressional legislation governing hours of labor, overtime compensation, and working conditions applicable to federal employees.
Common Language
Modern common usage (Wiktionary): An employee of the post office who delivers mail (post) to, and collects it from, a residence or business, or from public mailboxes.
Historical common usage (Webster's 1913): One who carries letters; specifically, an employee of the post office who delivers mail to recipients at their addresses.
The common and legal meanings are largely aligned, but the legal significance of the term lies in its status as a defined class of federal employee for purposes of labor and compensation statutes. In legal research, "letter carrier" is less a term of art than a term of designation — identifying a category of worker to whom specific statutory protections and wage rules attach, distinctions that do not appear in ordinary usage.
Why It Matters in Research
The primary legal importance of "letter carrier" in historical American law is not definitional but regulatory: Congress singled out letter carriers as a named class in federal labor legislation governing hours of work. The eight-hour workday provision and the right to extra compensation for hours worked beyond eight in a single day were codified in the Revised Statutes and supplements, and the rule against offsetting excess hours on one day against shorter hours on another was confirmed by federal court decisions. Researchers working in federal employment law, postal service history, or early labor law will encounter "letter carrier" as a statutory term of designation rather than a common-law concept.
Several research traps are worth noting. First, the term appears in provisions of the U.S. Revised Statutes and its supplements that are now largely superseded — modern postal employment is governed by the Postal Reorganization Act of 1970, collective bargaining agreements administered under the National Labor Relations Act framework as modified for postal workers, and the rules of the U.S. Postal Service as an independent establishment. Historical corpus materials using "letter carrier" in a statutory or regulatory context almost certainly refer to the pre-1970 civil service framework and should not be read forward without tracing the legislative history.
Second, researchers should distinguish between "letter carrier" as a federal civil servant (the pre-1971 model) and postal employees under the reorganized USPS. The conversion from a cabinet-level department to an independent establishment significantly changed the legal status of postal workers, including their collective bargaining rights and compensation structures.
Third, the hours-of-labor provisions applicable to letter carriers were early examples of sector-specific federal labor legislation predating the Fair Labor Standards Act. Comparing these provisions to later general labor statutes requires care — the letter carrier rules operated on different enforcement mechanisms and covered a narrower class.
Historical Dictionary Support
Bouvier's entry is brief and functional. It identifies the letter carrier as a person employed to carry letters from the post office to addressees, notes the governing provisions in the U.S. Revised Statutes, and records two specific legal points: the eight-hour workday rule (citing 1 Supplement to the Revised Statutes, p. 587) and the entitlement to extra pay for hours worked beyond eight in a single day (citing a federal decision at 148 U.S. 124). The entry also begins to note the anti-offset rule — that excess hours on one day cannot be balanced against fewer hours on another — though the text is cut short.
What Bouvier does not address, and what later sources would need to supply, is the broader labor organizing history of letter carriers, the formation of the National Association of Letter Carriers (one of the earliest federal employee unions), or the constitutional and administrative law questions that arose from congressional attempts to restrict postal employees' political activity and collective action. The entry is a snapshot of a moment when statutory labor protections for this class of workers were recent and still being interpreted by federal courts.
Jurisdictional Note
Letter carriers are federal employees; their employment status, compensation rights, and labor relations are governed by federal law, not state employment law. State labor statutes generally do not apply. Researchers should confirm which federal statutory regime was in effect for the period under study.
Encyclopedia Cross-Reference
No Law Mind Encyclopedia entry addresses letter carrier law directly. The most contextually adjacent entry is The Privileges or Immunities Clause — Dead Letter or Revival? (The Law Mind Constitutional Law Encyclopedia, constitutional_135), which may be relevant for researchers examining constitutional constraints on federal employee rights in the same era.