Senders: Barrett, Lawrence
- Lawrence Barrett to SLC, 25 May 1874 · Boston, Mass. · UCLC31992 CU-MARK
- Lawrence Barrett to Samuel L. Clemens and Olivia L. Clemens, 20? February 1880 · UCLC32722 CU-MARK
- Lawrence Barrett to SLC, 15 March 1883 · Philadelphia, Pa. · UCLC46446 NPV
- Lawrence Barrett to SLC and OLC, 27 February 1886 · New York, N.Y. · UCLC42887 CU-MARK
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