Private company

Railway Mail Service

US mail transportation service

The Railway Mail Service of the United States Post Office Department was a significant mail transportation service in the US from the mid-19th century until the mid-20th century. The RMS, or its successor the Postal Transportation Service (PTS), carried the vast majority of letters and packages mailed in the United States from the 1890s until the 1960s.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

The Railway Mail Service of the United States Post Office Department was a significant mail transportation service in the US from the mid-19th century until the mid-20th century. The RMS, or its successor the Postal Transportation Service (PTS), carried the vast majority of letters and packages mailed in the United States from the 1890s until the 1960s.2

Subsidiaries and ownership

Parent company

  • United States Post Office Department

From Wikidata.1

Acquisitions

  1. Succeeded by Postal Transportation Service1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2