Addressees: Fitzgibbon, George H
- Samuel L. Clemens to George H. Fitzgibbon, 5 October 1872 · London, England · UCCL00820 CtHMTH
- Samuel L. Clemens to George H. Fitzgibbon, 12 June 1873 · London, England · UCCL00925
- Samuel L. Clemens to George H. Fitzgibbon, 19 June 1873 · London, England · UCCL00929 NN-BGC
- Samuel L. Clemens to George H. Fitzgibbon, 28 November 1873 · London, England · UCCL00990 CtHMTH
- Samuel L. Clemens to George H. Fitzgibbon, 9 December 1873 · London, England · UCCL00995 MoSW
- Samuel L. Clemens to George H. Fitzgibbon, 21 December 1873 · London, England · UCCL01012 NN-BGC
- Samuel L. Clemens to George H. Fitzgibbon, 30 December 1873 · London, England · UCCL01020 NN-BGC
- Samuel L. Clemens to George H. Fitzgibbon, 1 January 1874 · London, England · UCCL01027 CtHMTH
- Samuel L. Clemens to George H. Fitzgibbon, 6 January 1874 · London, England · UCCL01035 CtHMTH
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