Index: Papers of John Adams, Volume 21 Pickering, Timothy (U.S. secy. of state) 6 as secretary of state PJA21 413 417 496 509 515 538 4 JQA and PJA21 413 425 504 509–10 3 JA and PJA21 413 469 509 3 as secretary of war PJA21 368 413 445 5 as U.S.–Native American commissioner PJA21 xii xxv 215–29 235 337 3 letters to JA listed (1796) PJA21 554 555 556 3 Letters to JA (1796) PJA21 445 508 510 2 yellow fever and PJA21 232 233 2 letters to JA listed (1795) PJA21 552 554 1 identified PJA21 413 1 TBA and PJA21 508–509 1 Massachusetts boundary dispute and PJA21 495 1 Washington and PJA21 510 See also: State Department, U.S. See also: War Department, U.S.