- Letter 351 (about 1870) Mrs. J. G. Holland
- Letter 352 (26 September 1870) T. W. Higginson
- Letter 354 (early October 1870) Mrs. J. G. Holland
- Letter 355 (late October 1870) Perez Cowan
- Letter 356 (19 December 1870) Susan Gilbert Dickinson
- Letter 357 (December 1870?) - no ms. Louise and Frances Norcross
- Letter 358 (about 1 January 1871) Edward (Ned) Dickinson
- Letter 359 (early January 1871) Mrs. J. G. Holland
- Letter 360 (spring 1871) - no ms. Louise Norcross
- Letter 361 (spring 1871) Mrs. Henry Hills
- Letter 362 (mid-July 1871) - no ms. Louise Norcross
- Letter 363 (late July 1871) - no ms. Mrs. Lucius Boltwood
- Letter 364 (September 1871) Susan Gilbert Dickinson
- Letter 365 (about 1871) Susan Gilbert Dickinson
- Letter 366 (about 1871) Susan Gilbert Dickinson
- Letter 367 (early October 1871) - no ms. Louise and Frances Norcross
- Letter 368 (November 1871) T. W. Higginson
- Letter 369 (late November 1871) Mrs. J. G. Holland
- Letter 370 (about 1872) Mrs. J. G. Holland
- Letter 371 (mid-March 1872) T. W. Higginson