Addressees: Day, Alice Hooker
- OLC to Alice H. Day, 25 December 1866 · New York, N.Y · UCCL10545
- OLC to Alice H. Day, 26 May 1867 · Elmira, N.Y · UCCL10543
- OLC to Alice H. Day, 7 June 1867 · Elmira, N.Y · UCCL10542
- OLC to Alice H. Day, 17 June 1867 · Elmira, N.Y · UCCL00138
- OLC to Alice H. Day, 29 July 1867 · Canandaigua, N.Y · UCCL10541
- OLC to Alice H. Day, 4 October 1867 · Elmira, N.Y · UCCL00150
- OLC to Alice H. Day, 30 October 1867 · Unknown place · UCCL10540
- OLC to Alice H. Day · UCCL00163
- OLC to Alice H. Day · UCCL00193
- OLC to Alice H. Day, 8 March 1868 · Elmira, N.Y · UCCL10539
- OLC to Alice H. Day, 22 April 1868 · Elmira, N.Y · UCCL10538
- OLC to Alice H. Day, 8 August 1868 · Elmira, N.Y · UCCL10537
- OLC to Alice H. Day, 29 September 1868 · Elmira, N.Y · UCCL02754
- OLC to Alice H. Day, 5 November 1868 · Elmira, N.Y · UCCL10536
- OLC to Alice H. Day, 16 December 1868 · Elmira, N.Y · UCCL10535
- OLC to Alice H. Day · UCCL00308
- OLC to Alice H. Day · UCCL00370
- OLC to Alice H. Day · UCCL00409
- OLC to Alice Day Hooker · UCCL00444
- OLC to Alice H. Day, May 1870 · Buffalo, N.Y · UCCL00474
- OLC to Alice H. Day, 6 June 1870 · Buffalo, N.Y · UCCL00477
- Olivia L. and Samuel L. Clemens to Alice Hooker Day, 25 January 1871 · Buffalo, N.Y · UCCL00564
- OLC to Alice H. Day, 25 July 1873 · Edinburgh, Scotland · UCCL00776
- Samuel L. Clemens to John C. Day and Alice H. Day, 27 September 1876 · Hartford, Conn · UCCL01368
- OLC to Alice H. Day, 30 August 1882 · Elmira, N.Y · UCCL10530
- OLC to Alice H. Day and John C. Day, 7 January 1884 · Hartford, Conn · UCCL10529
- OLC to Alice H. Day, 25 December 1888 · Hartford, Conn · UCCL10603
- OLC to Alice H. Day, 11 April 1890 · Hartford, Conn · UCCL10604
- OLC to Alice H. Day, 28 May 1891 · Hartford, Conn · UCCL04211
- OLC to Alice H. Day, 7 March 1892 · Menton, France · UCCL10526
- OLC to Alice H. Day, 23 February 1893 · Florence, Italy · UCCL10525
- OLC to Alice H. Day, 8 July 1893 · Munich, Germany · UCCL10524
- OLC to Alice H. Day, 27 August 1893 · Franzensbad, Germany · UCCL10522
- OLC to Alice H. Day, 5 September 1893 · Franzensbad, Germany · UCCL10523
- OLC to Alice H. Day, 9 September 1893 · Franzensbad, Germany · UCCL10521
- OLC to Alice H. Day, 10 October 1893 · Homburg, Germany · UCCL04472
- OLC to Alice Hooker Day, 4 February 1894 · Paris, France · UCCL10520
- OLC to Alice H. Day, 1 April 1894 · Paris, France · UCCL10519
- OLC to Alice H. Day, 23 May 1894 · Paris, France · UCCL10518
- OLC to Alice H. Day, 1 July 1894 · La Bourboule, France · UCCL10599
- OLC to Alice H. Day, 7 October 1894 · Rouen, France · UCCL10516
- SLC to Alice H. Day, 16 October 1894 · Rouen, France · UCCL04793
- OLC to Alice Hooker Day, 26 January 1895 · Paris, France · UCCL10598
- OLC to Alice H. Day, 3 February 1895 · Paris, France · UCCL10597
- OLC to Alice H. Day, 13 April 1896 · SS Wardha · UCCL05040
- OLC to Alice H. Day, 25 May 1896 · Durban, South Africa · UCCL10605
- Clara L. Clemens to Alice H. Day, 28 June 1896 · Cradock, South Africa · UCCL10621
- Clara L. Clemens to Katherine S. Day and Alice H. Day, 18 August 1896 · London, England · UCCL10623
- Clara L. Clemens to Alice H. Day, 11 September 1896 · London, England · UCCL05108
- OLC to Alice H. Day, 22 October 1896 · London, England · UCCL10606
- OLC to Alice H. Day, 18 August 1901 · New York, N.Y · UCCL10607
- Susy (Olivia Susan) and Clara L. Clemens to Katherine S. Day and Alice H. Day, Unknown date, Hartford, Conn · UCCL10622
- OLC to Katherine S. Day and Alice H. Day, Unknown date, Hartford, Conn · UCCL11119
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