Overview

Record Group (RG) 28 of the National Archives is the Records of the Post Office Department. Five Preliminary Inventories (PI) were written about the collection:

  • PI 36: Bureau of the First Assistant Postmaster General, 1789–1942, comp. by Frank J. Nivert and Arthur Hecht (1951), 16 pp. (RG 28) [out of print]
  • PI 82: Records of the Bureau of the Second Assistant Postmaster General, 1814–1946, comp. by Arthur Hecht (1955), 40 pp. (RG 28) [out of print]
  • PI 99: Records of the Bureau of the Second Assistant Postmaster General, 1814–1946, comp. by Arthur Hecht (1955), 40 pp. (RG 28) [out of print]
  • PI 114: Records of the Bureaus of the Third and Fourth Assistant Postmasters General, the Bureau of Accounts, and the Bureau of the Chief Inspector of the Post Office Department, comp. by Arthur Hecht, et al. (1959), 45 pp. (RG 28) [out of print]
  • PI 168: Records of the Post Office Department, comp. by Arthur Hecht et al. (rev. by Forrest R. Holdcamper, 1967), 54 pp. (RG 28)

Preliminary Inventories (meant to be a stepping stone to an eventual inventory) detail the records available within the collection which is needed for a researcher to know what is available and how to request it. They include information such as the title, entry number, span of dates, size of collection (ie. volumes or feet), and information the records contain.

PI 168: Records of the Post Office Department

Two hundred and forty items (entries) are listed in PI 168. They were organized by the different departments within the Post Office Department as a whole. For example, entry numbers 1-5 are Records of the Immediate Office of the Postmaster General while entry numbers 8-22 are Records of the Office of the Chief Clerk. To learn more about these different departments, refer to PI 168.

For more information and examples for specific entries, click on any of the hyperlinked titles:

  1. ORDERS ("JOURNALS").   July 7, 1835-Mar. 5, 1953.   1,146 vols.   325 ft.
  2. LETTERS SENT.   Oct. 3, 1789-Dec 31, 1910; May 22, 1912-Aug. 30, 1913; Jan. 1, 1915-Dec. 31, 1952.   502 vols.   90 ft.
  3. DRAFTS OF LETTERS SENT.   1836-45.   1 ft.
  4. LETTERS RECEIVED.   1837-43.   1 ft.
  5. A FILM ENTITLED "THE STORY OF THE U.S. MAIL."   n.d.   1 reel.
  6. LETTERS SENT.   Mar. 1, 1930-Nov. 5, 1935.   23 vols.   4 ft.
  7. LETTERS SENT.   July 11-Dec. 14, 1929.   1 vol.   2 in.
  8. ANNUAL REPORTS.   1836, 1840, 1846.   1 in.
  9. CONGRESSIONAL CORRESPONDENCE AND RESOLUTIONS.   1839-41, 1854-58.   1 ft.
  10. LETTERS SENT.   Jan. 18, 1873-Mar. 14, 1910.   117 vols.   11 ft.
  11. RECORDS RELATING TO THE POST OFFICE DEPARTMENT BUILDING.   1827-55.   5 in.
  12. RECORDS OF THE OFFICE OF ELECTO-MAGNETIC TELEGRAPH.   1837-46.   2 in.
  13. AGREEMENTS ON TELEGRAPH RATES.   1866-1913.   1 ft.
  14. RECORDS RELATING TO TELEPHONIC AND TELEGRAPHIC SERVICES.   July 6, 1906-Nov. 15, 1910; Jan. 1, 1911-Mar. 3, 1922.   3 vols.   3 in.
  15. NOTICES AND PROTESTED WARRANTS OF DRAFTS.   1837.   1 in.
  16. RECORDS RELATING TO THE CLAIM OF JOHN T. SULLIVAN FOR BINDING COPIES OF LAWS AND INSTRUCTIONS TO POSTMASTERS.   1939-48.   1 in.
  17. RECORDS OF THE CENSORSHIP BOARD.   1917-1918.   40 ft.
  18. LETTERS RECOMMENDING JOHN ZUMSTEIN AS POSTMASTER FOR THE CINCINNATI, OHIO, POST OFFICE.   Mar.-Aug. 1890.   3 vols.   3 in.
  19. RECORDS RELATING TO THE KEEP COMMISSION.   1906-7.   1 VOL.   3 in.
  20. FILMS SHOWING THE CONSTRUCTION OF THE POST OFFICE DEPARTMENT BUILDING IN WASHINGTON, D.C.   1931-34.   14 reels.
  21. FILMS SHOWING SERVICES FURNISHED BY THE POST OFFICE DEPARTMENT AND METHODS USED IN SUPPLYING THEM.   1915-38.   51 reels.
  22. FILMS SHOWING GERMAN AND ITALIAN VICTORIES IN FRANCE, POLAND, AND AT SEA.   1940-41.   32 reels.
  23. REPORTS AND CORRESPONDENCE RELATING TO PERSONNEL.   Jan. 9, 1904-May 26, 1913.   19 vols. and unbound papers.   3 ft.
  24. JOURNAL OF HUGH FINLAY, SURVEYOR OF POST ROADS AND POST OFFICES.   Sept. 13, 1773-May 24, 1774.   1 vol.   1 in.
  25. MISCELLANEOUS RECORDS.   1794-1894.   1 ft.
  26. RECORD OF LETTERS SENT FROM THE WILMINGTON, DEL., POST OFFICE TO OTHER POST OFFICES.   Mar. 10, 1786-June 11, 1792.   1 vol.   2 in.
  27. SCRAPBOOK OF CIRCULARS, NOTICES, INSTRUCTIONS, REGULATIONS, AND NEWSPAPER CLIPPINGS.   1823-71.   1 vol.   2 in.
  28. RECORD OF MAILS SENT AND RECEIVED AT THE COLLINS, ERIE COUNTY, N.Y., POST OFFICE.   1827-29.   1 vol.   1 in.
  29. LETTERS SENT.   1862-87.   5 vols.   5 in.
  30. GENERAL RECORDS.   1884-99, 1911-13.   2 ft.
  31. RECORDS RELATING TO THE POST OFFICE DEPARTMENT BUILDING.   1871-75, 1893.   2 vols.   2 in.
  32. LETTERS SENT.   Dec. 18, 1867-June 26, 1874; May 29, 1893-Dec. 31, 1895; May 1, 1897-Dec. 27, 1901.   13 vols.   2 ft.
  33. GENERAL RECORDS OF THE POSTAL EMPLOYEES' COOPERATIVE STORE ASSOCIATION.   1917-21.   3 in.
  34. GENERAL RECORDS OF THE DIVISION OF SERVICE RELATIONS.   1921-30.   3 in.
  35. CARD INDEX TO GENERAL RECORDS.   1905-21.   3 ft.
  36. GENERAL RECORDS.   1905-21.   10 ft.
  37. CARD INDEX TO RECORDS RELATING TO FEDERAL OPERATION OF TELEPHONE, TELEGRAPH, AND CABLE COMPANIES.   1919-21.   12 ft.
  38. RECORDS RELATING TO FEDERAL OPERATION OF TELEPHONE, TELEGRAPH, AND CABLE COMPANIES.   1918-21.   12 ft.
  39. CARD RECORDS RELATING TO FEDERAL OPERATION OF TELEPHONE, TELEGRAPH, AND CABLE COMPANIES.   1919-21.   13 ft.
  40. RECORDS RELATING TO THE ESPIONAGE ACT, WORLD WAR I.   1917-21.   94 ft.
  41. RECORDS RELATING TO THE ESPIONAGE ACT, WORLD WAR II.  1942-1945.   25 ft.
  42. RECORDS RELATING TO AIRMAIL AND OCEAN-MAIL CONTRACTS.   1934-40.   32 ft.
  43. CORRESPONDENCE AND MEMORANDA RELATING TO THE ADMISSIBILITY OF FOREIGN PUBLICATIONS.   1940-47.   1 ft.
  44. BRIEFS OF CONTENTS OF NONMAILABLE PUBLICATIONS.   1940-47.   1 ft.
  45. LISTS OF MAILABLE AND NONMAILABLE PUBLICATIONS.   1940-47.   6 ft.
  46. CASE FILE RELATING TO ESQUIRE MAGAZINE.   1943-46.   10 ft.
  47. OFFICE FILES OF WILLIAM H. LAMAR.   1912-22.   8 in.
  48. OPINIONS.   1868-74, 1895-97.   3 in.
  49. LETTERS SENT.   Feb. 1877-Mar. 1879; July-Aug. 1906.   2 vols.   3 in.
  50. "FRAUD ORDER CASE FILES."   1834-79, 1881-96, 1912-47.   79 ft.
  51. REGISTER OF "FRAUD ORDERS."   Nov. 1879-June 30, 1951.   8 vols.   5 ft.
  52. TRANSCRIPTS OF HEARINGS ON FRAUD CASES.   1913-45.   63 ft.
  53. TRANSCRIPTS OF HEARINGS ON AIRMAIL AND OCEAN-MAIL CONTRACTS.   Oct. - Dec. 1934.   7 ft.
  54. DOCKET OF CASES REFERRED TO THE ASSISTANT ATTORNEY GENERAL FOR THE POST OFFICE DEPARTMENT.   1886-90.   1 vol.   1 in.
  55. FRAUD DOCKETS.   1900-July 1951.   22 vols.  3 ft.
  56. DOCKETS OF STATE AND FEDERAL DISTRICT COURT CASES INVOLVING POSTAL LAWS.   July 1917-July 1951.   4 vols.   8 in.
  57. REGISTERS OF POSTMASTERS' CLAIMS.   1882-1929.   19 vols.   3 ft.
  58. SURETY BONDS ("JUSTIFICATIONS").   1901-2, 1908.   8 in.
  59. LETTERS SENT.   May-Dec. 1904, Jan. - Mar. 1910, June-Dec. 1910.   9 vols.   1 ft.
  60. LETTERS SENT.   Oct. 27, 1793-Mar. 26, 1800.   3 vols.   3 in.
  61. MISCELLANEOUS CORRESPONDENCE.   1911-1928, 1929-32.   8 in.
  62. STATEMENTS RELATING TO POST OFFICE DEPARTMENT APPROPRIATION BILLS AND OTHER LEGISLATION.   1912-31.   1 ft.
  63. CORRESPONDENCE AND REPORTS RELATING TO CREDIT UNIONS FOR POSTAL EMPLOYEES.   1923-41.   6 ft.
  64. ORDERS ("JOURNALS").   July 1867-Feb. 1905.   71 vols.   21 ft.
  65. REPORTS AND CORRESPONDENCE RELATING TO CONVENTIONS OF POSTMASTERS.   1908-9, 1922-28.   7 in.
  66. REPORTS RELATING TO CONVENTIONS OF POSTMASTERS.   1922-27.   5 in.
  67. RECORD OF FIRST RETURNS RECEIVED FROM POSTMASTERS.   Oct. 1789-July 1818.   1 vol.   4 in.
  68. RECORD OF APPOINTMENT OF POSTMASTERS.   1815-32.   6 vol.   2 ft.
  69. RECORD OF APPOINTMENT OF POSTMASTERS.   1832-1930.   98 vols.   33 ft.
  70. RECORD OF THE COMMISSIONING AND APPOINTMENT OF POSTMASTERS.   1889-1908.   68 vols.   21 ft.
  71. DAILY RECORD OF THE APPOINTMENT OF POSTMASTERS AND OF THE ESTABLISHMENT, DISCONTINUANCE, AND NAME AND SITE CHANGES OF POST OFFICES.   Jan. 1899-Dec. 1914.   42 vols.   12 ft.
  72. INDEX TO THE RECORD OF APPOINTMENT OF POSTMASTERS.   1840-1908.   27 vols.   9 ft.
  73. ALPHABETICAL RECORD OF APPOINTMENT OF POSTMASTERS IN IOWA, LOUISIANA, ARKANSAS, AND MISSOURI ("INDEX TO POST OFFICES").   1866-74.   2 vols.   6 in.
  74. MISCELLANEOUS RECORDS REGARDING THE APPOINTMENT AND REAPPOINTMENT OF POSTMASTERS.   1907-13.   1 ft.
  75. CORRESPONDENCE WITH MEMBERS OF CONGRESS CONCERNING ACTING POSTERMASTERS.   1923-24.   1 in.
  76. REPORTS OF CIVIL SERVICE COMMISSION INVESTIGATIONS OF APPLICATIONS FOR POSTMASTERSHIPS.   1918-21.   4 ft.
  77. EXHIBITS RELATING TO THE CASE OF POSTMASTER JOHN A. THORNTON OF PHILADELPHIA.   1915-21.   2 ft.
  78. RECORD OF SALARIES OF REGULAR CLERKS AND OTHER PERSONNEL IN FIRST- AND SECOND-CLASS POST OFFICES.   July 1, 1889-June 30, 1907.   28 vols.   6 ft.
  79. RECORD OF APPOINTMENT OF SUBSTITUTE CLERKS IN THE FIRST- AND SECOND-CLASS POST OFFICES.   July 1, 1899-June 30, 1905.   2 vols.   3 in.
  80. RECORD CARDS OF SECOND-CLASS POST OFFICES.   1916-25.   3 in.
  81. RECORDS RELATING TO CONTRACT STATIONS AND BRANCHES.   1916-35.   53 ft.
  82. REPORTS RELATING TO SUNDAY SERVICE AND THE NEED FOR ADDITIONAL PERSONNEL.   1911-12.   2 ft.
  83. CORRESPONDENCE WITH THIRD-CLASS POST OFFICES.   1925-36.   3 in.
  84. RECORD CARDS OF CARRIERS SEPARATED FROM THE POSTAL SERVICE.   1863-99.   12 ft.
  85. REGISTER OF REGULAR CARRIERS IN FIRST- AND SECOND-CLASS POST OFFICES.   1888-1902.   5 vols.   1 ft.
  86. RECORD OF SALARIES OF REGULAR CARRIERS AT FIRST- AND SECOND-CLASS POST OFFICES.   1906-7.   3 vols.   6 in.
  87. REGISTER OF SUBSTITUTE CARRIERS IN FIRST- AND SECOND-CLASS POST OFFICES.   1889-1903.   2 vols.   4 in.
  88. INDEX TO NAMES OF SUBSTITUTE CARRIERS IN FIRST- AND SECOND-CLASS POST OFFICES.   1892-96.   1 vol.   1 in.
  89. INDEX TO NAMES OF CARRIERS IN SMALL CITY POST OFFICES.   1888-1902.   1 vol.   1 in.
  90. ESTIMATES OF THE NUMBER OF CLERKS AND CARRIERS NEEDED BY FIRST- AND SECOND-CLASS POST OFFICES FOR THE FISCAL YEAR 1924.   May-June 1923.   2 ft.
  91. REPORTS CONCERNING INSPECTIONS OF CITY DELIVERY SERVICE AT BALTIMORE, MD., KALAMAZOO, MICH., AND PITTSBURGH, PA.   1929-31.   2 in.
  92. RECORDS RELATING TO THE DETROIT RIVER STEAMBOAT SERVICE.   1895-1928.   1 ft.
  93. GENERAL HEADQUARTERS CORRESPONDENCE.   1898-1936.   106 ft.
  94. RECORDS OF THE SUPERINTENDENT OF THE FREE DELIVERY SYSTEM, DIVISION OF RURAL DELIVERY.   1901-6.   2 ft.
  95. STATISTICAL STATEMENT OF THE FREE DELIVERY SERVICE.   1896-1910.   2 vols.   4 in.
  96. MISCELLANEOUS CORRESPONDENCE OF THE SUPERINTENDENT OF THE DIVISION.   1923-34.   3 in.
  97. REPORTS CONCERNING THE RELATIVE IMPORTANCE OF TYPES OF WORK DONE BY POSTAL CLERKS AND CARRIERS.   May 1912.   2 in.
  98. FORMS USED IN THE CHICAGO POST OFFICE "UNIT SYSTEM" OF WORK REPORTS.   ca. 1931-34.   2 in.
  99. REPORTS RELATING TO OVERTIME, CHANGES IN FORCE, AND STATUS AND TYPE OF WORK.   1925-33.   3 in.
  100. CORRESPONDENCE AND REPORTS RELATING TO THE WEIGHING SYSTEM OF WORK MEASUREMENT.   1923-30.   4 in.
  101. MISCELLANEOUS RECORDS.   1897-1930.   6 in.
  102. LETTERS SENT.   1891-1934.   10 ft.
  103. MISCELLANEOUS LETTERS SENT.   1908-33.   2 ft.
  104. MEMORANDA.   1914-29.   1 ft.
  105. CORRESPONDENCE RELATING TO AIRMAIL SERVICE.   1921-27.   2 ft.
  106. NOTICES TO RAILWAY COMPANIES.   Feb. 10, 1885-May 19, 1909.   40 vols. 7 ft.
  107. ANNUAL REPORTS OF THE SECOND ASSISTANT POSTMASTER GENERAL.   1911-31.   10 in.
  108. MONTHLY REPORTS OF CHANGES.   1922-30.   2 in.
  109. REPORTS OF STAFF CONFERENCES.   1921-23.   1 in.
  110. ROSTER OF BUREAU EMPLOYEES.   Nov. 1893-Jan. 1912.   1 vol.   1 in.
  111. BUDGET ESTIMATES AND REPORTS ON APPROPRIATIONS.   July 1920-June 1933.   4 ft.
  112. PERSONNEL RECORDS.   1918-33.   2 ft.
  113. SUBJECT INDEX TO CORRESPONDENCE OF THE GENERAL SUPERINTENDENT OF THE RAILWAY MAIL SERVICE.   1889-1915.   1 vol.   2 in.
  114. MISCELLANEOUS CORRESPONDENCE.   1902-29.   3 ft.
  115. INSTRUCTION CIRCULARS.   1921-34.   2 ft.
  116. DECISIONS AND INSTRUCTIONS RELATING TO THE HANDLING OF MAIL ON A SPACE-OCCUPIED BASIS.   1917-20.   8 IN.
  117. MONTHLY REPORTS ON THE COSTS OF OPERATING RAILWAY POSTAL LINES.   1922-28.   4 in.
  118. INDEXES TO ROSTERS OF RAILWAY POSTAL CLERKS.   1883-97.   3 vols.   7 in.
  119. ROSTERS OF SPECIAL, ROUTE, AND LOCAL BLANK AND STAMP AGENTS AND ROSTERS OF RAILWAY POSTAL CLERKS.   1855-97.   24 vols.   5 ft.
  120. NEWSLETTERS.   1918-51.   23 ft.
  121. DAILY SCHEDULES OF MAIL TRAINS.   1882-84.   3 vols.   5 in.
  122. registers of railroad mail-route contracts.   1877-1948.   658 vols.   138 ft.
  123. LETTERS SENT.   Sept. 1862-Apr. 1863.   1 vol.   6 in.
  124. INDEXES TO REGISTERS FOR STAR ROUTE CONTRACT.   1830-74, 1883-87, 1901-1960.   68 vols. and unbound papers.   51 ft.
  125. REGISTERS FOR STAR ROUTE CONTRACTS.   1814-1960.   622 vols. and unbound papers.   228 ft.
  126. LISTS OF STAR ROUTE MAIL CONTRACTORS.   1833-77.   36 vols.   5 ft.
  127. PAY BOOKS FOR STAR SERVICE.   1851-66.   52 vols.   10 ft.
  128. REGISTER OF RECEIPT WARRANTS.   1836-1942.   2 vols.   4 in.
  129. RECORDS OF GOVERNMENT-OPERATED STAR SERVICE BY MOTORTRUCKS.   1917-24.   26 ft.
  130. RECORDS RELATING TO THE ESTABLISHMENT OF HIGHWAY POST OFFICES.   1940-59.   4 ft.
  131. REGISTERS OF ORDERS CONCERNING POWERBOAT- AND STEAMBOAT-MAIL-ROUTE SERVICE.   1859-63; July 1, 1910-June 30, 1947.   14 vols. and unbound papers.   7 ft.
  132. POWERBOAT MAIL SERVICE CONTRACTS IN THE UNITED STATES AND HAWAII.   1949-53.   6 in.
  133. RECORDS RELATING TO POWERBOAT MAIL SERVICE IN VIRGINIA.   1921-25.   8 in.
  134. GENERAL CORRESPONDENCE.   1858-1916, 1942-52.   7 ft.
  135. GENERAL CORRESPONDENCE.   1907-46.   20 ft.
  136. CASE FILES AND GENERAL CORRESPONDENCE RELATING TO PRIVATE EXPRESS.   1896-1933.   11 ft.
  137. PUBLIC CARRIERS' REPORTS OF RAILWAY MAIL SERVICE PERFORMED.   1916-22.   1 ft.
  138. REPORTS RELATING TO EQUALIZATION OF PAY BETWEEN COMPETITIVE RAILROAD MAIL ROUTES.   1911-26.   5 in.
  139. REGISTERS OF MAIL MESSENGERS.   1877-81, 1900-47.   363 vols.   125 ft.
  140. CORRESPONDENCE RELATING TO TRANSFERS TO SIDE TERMINALS.   1927-34.   2 vols.   2 in.
  141. RECORD COPIES OF POSTAL CONVENTIONS WITH FOREIGN COUNTRIES.   1857-1929.   3 ft.
  142. MISCELLANEOUS RECORDS RELATING TO POSTAL CONGRESSES AND CONVENTIONS.   1916-27.   8 in.
  143. CORRESPONDENCE AND REPORTS CONCERNING SPEED TESTS OF CONTRACTED VESSELS.   1929-39.   4 ft.
  144. QUESTIONNAIRES RELATING TO OCEAN-MAIL ROUTES.   1933-34.   1 ft.
  145. ADMINISTRATIVE CORRESPONDENCE RELATING TO MILITARY POSTAL SERVICES.   1898-1902.   8 in.
  146. RECORDS RELATING TO THE CUBAN POSTAL SERVICE.   1896-1908.   6 ft.
  147. RECORDS RELATING TO THE PHILIPPINE ISLANDS POSTAL SERVICE.   1895-1903.   1 ft.
  148. RECORDS RELATING TO THE PUERTO RICAN POST SERVICE.   1899-1900.   1 in.
  149. CORRESPONDENCE RELATING TO AIRMAIL SERVICE.   1918-29, 1934-37.   8 in.
  150. SCHEDULES FOR AIRLINES.   1928-36.   20 ft.
  151. RECORDS CONCERNING AIRMAIL SERVICE TO CENTRAL AMERICA.   1924-26.   3 in.
  152. REPORTS OF PAN AMERICAN AIRWAYS AND OF FOREIGN AIRMAIL CARRIERS.   1934-37.   2 ft.
  153. PERFORMANCE REPORTS ON FOREIGN AIRMAIL SERVICE.   1938-39.   5 in.
  154. CORRESPONDENCE RELATING TO THE OPERATION OF AUTOGIRO AND HELICOPTER MAIL, AND THE FIRST AIRMAIL FREIGHT MAIL IN THE UNITED STATES AND ALASKA.   1919-35.   10 ft.
  155. RECORDS RELATING TO PROPOSED AND REQUESTED AIRMAIL AND HELICOPTER ROUTES AND STOPS.   1926-49.   12 ft.
  156. CASE FILES OF HEARINGS ON ESTABLISHING POSTAL HELICOPTER SERVICE.   1928-40.   6 ft.
  157. GENERAL RECORDS OF THE AIRMAIL SERVICE AND ITS SUCCESSORS.   1918-42.   95 ft.
  158. PUBLICITY MATERIALS RELATING TO AIRMAIL SERVICE.   1918-37.   7 ft.
  159. CORRESPONDENCE AND REPORTS RELATING TO "NATIONAL AIR MAIL WEEK."   1938-39.   5 ft.
  160. PERFORMANCE AND EFFICIENCY REPORTS ON DOMESTIC AIRMAIL SERVICE.   Aug. 1920-May 1924, May 1931-Apr. 1941.   45 vols. and unbound papers.   21 ft.
  161. RECORDS RELATING TO NATIONAL AIR TRANSPORT, INC.   1926.   4 in.
  162. BLUEPRINTS AND SPECIFICATIONS FOR AIRPLANES, PARTS, AND HANGARS.   1918-25.   13 ft.
  163. MAPS AND PLANS OF LANDING FIELDS.   1918-25.   56 items.   1/2 in.
  164. MAPS SHOWING LANDING FIELDS AND AIRMAIL ROUTES.   1918-41.   28 items.   1/2 in.
  165. PHOTOGRAPHIC PRINTS.   1920-35.   400 items.   2 ft.
  166. GENERAL CORRESPONDENCE.   1922-37.   4 ft.
  167. ACCOUNTS OF THE GENERAL POST OFFICE IN PHILADELPHIA AND OF THE VARIOUS DEPUTY POSTMASTERS ("LEDGER OF BENJAMIN FRANKLIN").   July 26, 1775-Jan. 5 1780.   1 vol.   2 in.
  168. LEDGERS OF THE GENERAL POST OFFICE.   1782-1803.   7 VOLS.   9 in.
  169. JOURNALS OF THE GENERAL POST OFFICE.   1782-1801.   2 vols.   3 in.
  170. LEDGER OF POSTAGE ACCOUNTS OF POST OFFICES WITH THE GENERAL POST OFFICE.   July 1785-Jan. 1786.   1 vol.   1 in.
  171. CORRESPONDENCE RELATING TO SPECIMEN SALARY CHECKS, DRAFTS, AND WARRANTS.   Aug. 1916; Feb. 1933-Sept. 1938.   1 in.
  172. CORRESPONDENCE REGARDING SUGGESTIONS FOR THE IMPROVEMENT OF THE POSTAL SAVINGS SYSTEM.   1913-20.   1 ft.
  173. ANNUAL REPORTS.   1913-36.   1 ft.
  174. RECORDS RELATING TO POST OFFICE BOXES (LOCKBOXES).   1894-1934.   1 ft.
  175. GENERAL RECORDS.   1868-1936.   6 ft.
  176. RECORDS OF INTERNATIONAL MONEY ORDER CONVENTIONS.   July 1873-May 1903.   3 ft.
  177. MONEY ORDER CONVENTIONS WITH FOREIGN COUNTRIES.   1870-1962.   2 ft.
  178. PLATE PROOF SHEETS OF STAMPS.   1870-97.   6 vols.   1 ft.
  179. "STAMP BILL BOOKS."   1870-97.   6 vols.   1 ft.
  180. LEDGER.   1898-1900.   1 in.
  181. RECORDS OF THE POSTAL CARD AGENT.   1893-1923.   2 ft.
  182. RECORDS RELATING TO AN INCREASE IN SECOND-CLASS POSTAGE RATES.   Apr. 1917-May 1920.   3 in.
  183. RECORDS RELATING TO PARCEL POST FACILITIES IN FOREIGN COUNTRIES.   Sept. 1911-Jan. 1912.   5 ft.
  184. GENERAL RECORDS.   1905-32.   34 ft.
  185. CORRESPONDENCE OF JAMES I. BLAKSLEE.   1914-20.   1 ft.
  186. LETTERS SENT.   Oct. 15, 1901-Sept. 1, 1911.   1 vol.   2 in.
  187. REPORTS OF SITE LOCATIONS.   1865-1946.   292 ft.
  188. ATLAS OF POSTAL MAPS.   1839.   13 sheets.   1 in.
  189. POST-ROUTE MAPS.   1867-94.   47 items.   6 in.
  190. POST-ROUTE (STATE) MAPS.   1894-1960.   448 items.   3 ft.
  191. MANUSCRIPT MAPS.   1901-47.   63 items.   2 in.
  192. POSTAL-ZONE MAPS.   1913.   124 items.   1 in.
  193. POST-ROUTE (STATE) MAPS SHOWING NAVIGABLE WATERS.   1917.   14 items.
  194. CITY MAPS.   1912-35.   575 items.   3 ft.
  195. RURAL-DELIVERY-ROUTE MAPS.   1927-28.   600 items.   1 ft.
  196. RURAL-DELIVERY-ROUTE LOCAL-CENTER MAPS.   1900-37.   600 items.   1 ft.
  197. RURAL-DELIVERY-ROUTE COUNTY MAPS.   n.d.   40 items.   3 in.
  198. POST-ROUTE (STATE) MAPS SHOWING CONGRESSIONAL DISTRICTS.   1935-40.   58 items.   4 in.
  199. POST-ROUTE (STATE) MAPS ANNOTATED WITH RED DOTS.   1935-40.   63 items.   4 in.
  200. POST-ROUTE (STATE) MAPS ANNOTATED WITH NUMBERS.   1937-39.   3 items.
  201. GENERAL RECORDS.   1858-1939.   9 ft.
  202. CORRESPONDENCE RELATING TO THE SHIPMENT OF FARM PRODUCE BY POSTAL MOTORTRUCK SERVICE.   1919-29.   1 ft.
  203. GENERAL RECORDS.   1892-1919.   27 ft.
  204. REPORTS AND CORRESPONDENCE REGARDING THE PNEUMATIC TUBE SERVICE.   1908-51.   8 ft.
  205. ORDERS.   1902-6.   1 vol.   1 in.
  206. RECORDS CONCERNING A COURT OF CLAIMS CASE REGARDING PNEUMATIC TUBES.   1903-53.   7 ft.
  207. RECORDS OF THE PNEUMATIC TUBE COMMISSION.   1912-14.   1 ft.
  208. GENERAL RECORDS.   1916-42.   3 ft.
  209. RECORDS RELATING TO LEASES.   1916-32.   3 ft.
  210. BLUEPRINTS, SKETCH PLANS, AND ESTIMATES FOR THE CONSTRUCTION OF POST OFFICE BUILDINGS OR EXTENSIONS.   1911-30.   12 ft.
  211. RECORDS RELATING TO DEDICATIONS OF POST OFFICE BUILDINGS.   1933-42.   12 ft.
  212. COST REPORTS.   1915-24.   1 ft.
  213. MISCELLANEOUS RECORDS.   1868-1911.   3 ft.
  214. GENERAL RECORDS.   1915-34.   94 ft.
  215. RECORDS RELATING TO ACTS PROVIDING FOR FEDERAL AID TO POST ROADS.   Sept. 1912-Mar. 1917.   10 in.
  216. FORMS.   1902-10.   2 ft.
  217. RECORDS RELATING TO RURAL MAIL CARRIERS.   1901-20.   11 ft.
  218. ACCOUNTING RECORDS.   1906-19.   4 vols.   4 in.
  219. GENERAL RECORDS.   1889-1924.   23 ft.
  220. LETTERS SENT.   1904-18.   20 vols.   2 ft.
  221. SEA POST OFFICE ACCOUNTS.   1891-1914.   1 vol.   1 in.
  222. GENERAL POST OFFICE ACCOUNTS WITH FOREIGN COUNTRIES.   1883-86, 1892-1903.   3 vols.   4 in.
  223. CLOSED TRANSIT STATEMENTS WITH FOREIGN COUNTRIES.   1893-98.   1 vol.   1 in.
  224. POSTAL-MONEY-ORDER ACCOUNTS WITH FOREIGN COUNTRIES.   July-Aug. 1914.   4 vols.   8 in.
  225. RECEIPTS OF PAYMENT FOR FOREIGN MAIL TRANSIT BY SEA.   1900-1909.   3 vols.   3 in.
  226. RECORDS OF PAYMENT OF MONEY ORDER ACCOUNTS WITH FOREIGN COUNTRIES.   1911-15.    2 vols.   4 in.
  227. POSTMASTERS' ACCOUNTS.   1862-74.   360 vols.   30 ft.
  228. LETTERS SENT BY THE CHIEF SPECIAL AGENT, OFFICE OF MAIL DEPREDATIONS.   May 21, 1875-July 11, 1877.   1 vol.   2 in.
  229. REGISTER OF ARRESTS FOR OFFENSES AGAINST POSTAL LAWS.  Aug. 1864-Jan. 1876; Jan. 1878-May 1897.   13 vols.   2 ft.
  230. INDEX TO ARRESTS.   Jan. 1, 1888-Dec. 31, 1891; Jan. 1, 1895-June 30, 1899.   3 vols.   6 in.
  231. CASE FILES OF INVESTIGATIONS.   Nov. 1877-Dec. 1903.   157 ft.
  232. STATEMENTS OF ARRESTS.   Jan. 1881-Dec. 1890.   1 vol.   2 in.
  233. RECORDS RELATING TO THE RAILWAY MAIL SERVICE INVESTIGATION.   Feb.-May 1925.   1 ft.
  234. ROSTERS.   1898-1909.   1 ft.
  235. ANNUAL REPORTS.   1905-35.   2 ft.
  236. BIMONTHLY GENERAL INTELLIGENCE PRESS REPORTS OF THE JUSTICE DEPARTMENT.   Nov. 1918-Jan. 1921; Mar. 1921-May 1922.   1 ft.
  237. RECORDS OF THE INSPECTION OFFICE, ST. LOUIS, MO.   Sept. 28, 1876-June 3, 1878.   2 vols.   4 in.
  238. RECORDS OF THE INSPECTION OFFICE, DENVER, COLO.   Dec. 20, 1879-May 8, 1907.   32 vols.   5 ft.
  239. RECORDS OF THE INSPECTION OFFICE, PHILADELPHIA, PA.   May 12, 1896-Jul 21, 1909.   34 vols.   6 ft.
  240. RECORDS OF THE INSPECTION OFFICE, NEW YORK, N.Y.   Apr. 27-May 28, 1907; Sept. 10-Oct. 7, 1908.   2 vols.   4 in.

More Resources:

The National Archives published a List of Selected Maps of States and Territories in 1971. The list included maps with Post Offices, Post Roads, Post Routes, and more.