Official Register of the United States, 1816–1911

The biennial Official Register lists Post Offices and postal employees and their financial compensation in 1816, and in odd-numbered years from 1817 to 1911. The earliest editions of the Official Register list Headquarters employees, postmasters, Post Office clerks, and mail contractors. Route agents and mail messengers are first listed in 1855. Railway Mail Service employees and city carriers are listed beginning in 1867, and rural carriers beginning in 1899. From 1877 to 1905, the Official Register is indexed by employee name.

Selected editions of the Official Register of the United States may be available from your local library through inter-library loan.