Arrangement of the Papers
This collection is arranged in twenty-seven series:
- Series 1: Family Correspondence and Related Items, 1805-1909
- Series 2: William Howard Taft-Helen Herron Taft Correspondence, 1882-1929
- Series 3: General Correspondence and Related Material, 1877-1941
- Series 4: William Howard Taft-Theodore Roosevelt Correspondence, 1897-1918
- Series 5: Executive Office Correspondence (Presidential Series No. 1), 1909-1910
- Series 6: Executive Office Correspondence (Presidential Series No. 2), 1909-1913
- Series 7: The President's Personal File (Presidential Series No. 3), 1909-1913
- Series 8: Letterbooks, 1872-1921
- Series 9: Speeches, Articles, and Messages, 1850-1929
- Series 10: Professional Diaries, 1902-1918
- Series 11: Family Diaries and Miscellaneous Personal Volumes, 1835-1930
- Series 12: Legal Papers of Alphonso Taft, 1784-1889
- Series 13: Legal Papers of William Howard Taft, 1880-1929
- Series 14: Legal Notebooks, 1887-1900
- Series 15: Miscellaneous Legal Manuscripts, 1881-1930
- Series 16: Law Lectures and Related Material, 1897-1921
- Series 17: Scrapbooks, 1879-1922
- Series 18: Taft Family Financial Papers, 1800-1930
- Series 19: Taft Family Financial Account Books and Related Material, 1831-1926
- Series 20: Miscellaneous Correspondence and Related Material, 1797-1941
- Series 21: Special Correspondence, 1890-1909
- Series 22: Miscellaneous Addresses, Articles, and Related Material, circa 1807-1909
- Series 23: Miscellaneous Reports and Minutes, 1905-1929
- Series 24: Miscellaneous Messages, 1908-1913
- Series 25: Miscellany, 1831-1930
- Series 26: Oversize Material, 1831-1929
- Series 27: Addition, 1838-1973