To
Joseph H. Twichell
24 March 1880 • Hartford, Conn. (MS: CU-MARK, UCCL 09197)
24 March 1880 • Hartford, Conn. (MS: CU-MARK, UCCL 09197)
References
- University of California, Mark Twain Papers, The Bancroft Library, Berkeley
- Machlis, Paul, ed. Union Catalog of Clemens Letters. Edited by Paul Machlis. Berkeley, Los Angeles, London: University of California Press. [In some cases, UCCL catalog numbers cited in this volume supersede those assigned in 1986 and reflect corrections or additions to the catalog since publication. An updated version of the catalog can be consulted via the Letters Search page at MTPO.] 1986
- MTHL. Mark Twain–Howells Letters. Edited by Henry Nash Smith and William M. Gibson, with the assistance of Frederick Anderson. 2 vols. Cambridge: Belknap Press of Harvard University Press. 1960
- Microfilm Edition of Mark Twain’s Previously Unpublished Letters. Prepared by Anh Quynh Bui, Victor Fischer, Michael B. Frank, Robert H. Hirst, Lin Salamo, and Harriet Elinor Smith. 8 vols. Berkeley: The Bancroft Library. 2001


MS, CU-MARK. Written on a letter from William Dean Howells to SLC, 22 March 1880click to open link.
MTHL , 1:293; MicroPUL, reel 1.