Senders: Gerhardt, Karl
- Karl Gerhardt to SLC and OLC, 24 February 1881 · UCLC40693 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to SLC, 4 March 1881 · New York, N.Y. · UCLC40714 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to SLC and OLC, 17 March 1881 · Paris, France · UCLC40726 CU-MARK
- Karl Gerhardt to OLC and SLC, 21 March 1881 · Paris, France · UCLC40730 CU-MARK
- Karl Gerhardt to SLC and OLC, 10 April 1881 · Paris, France · UCLC40749 CU-MARK
- Hattie J. and Karl Gerhardt to OLC and SLC, 23 April 1881 · Paris, France · UCLC40760 CU-MARK
- Karl Gerhardt to SLC & OLC, 7 June 1881 · Paris, France · UCLC50186 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 17 July 1881 · Paris, France · UCLC40802 CU-MARK
- Karl Gerhardt to OLC and SLC, 7 August 1881 · Paris, France · UCLC40820 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to OLC and SLC, 21 August 1881 · Paris, France · UCLC40838 CU-MARK
- Karl Gerhardt to SLC and OLC, 18 September 1881 · Paris, France · UCLC40863 CU-MARK
- Karl Gerhardt to SLC and OLC, 10 October 1881 · Paris, France · UCLC40877 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 1 November 1881 · Paris, France · UCLC40904 CU-MARK
- Karl Gerhardt to OLC and SLC, 1 January 1882 · Paris, France · UCLC40967 CU-MARK
- Karl Gerhardt to SLC and OLC, 28 February 1882 · Paris, France · UCLC41045 CU-MARK
- Karl Gerhardt to SLC and OLC, 7 March 1882 · Paris, France · UCLC41063 CU-MARK
- Karl Gerhardt to SLC and OLC, 31 March 1882 · Paris, France · UCLC41104 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to SLC and OLC, 13 April 1882 · Paris, France · UCLC41248 CU-MARK
- Karl Gerhardt to SLC and OLC, 14 June 1882 · Paris, France · UCLC41446 CU-MARK
- Karl Gerhardt to SLC and OLC, 30 June 1882 · Paris, France · UCLC41469 CU-MARK
- Karl Gerhardt to SLC and OLC, 10 July 1882 · Paris, France · UCLC41117 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to SLC and OLC, 13 August 1882 · Paris, France · UCLC41177 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 18 August 1882 · Paris, France · UCLC41184 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 21 August 1882 · Paris, France · UCLC41189 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 7 September 1882 · Paris, France · UCLC41213 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to OLC and SLC, 25 September 1882 · Paris, France · UCLC41313 CU-MARK
- Karl Gerhardt to OLC and SLC, 6 October 1882 · Paris, France · UCLC41329 CU-MARK
- Karl Gerhardt to SLC and OLC, 16 October 1882 · Paris, France · UCLC41347 CU-MARK
- Karl Gerhardt to OLC and SLC, 31 October 1882 · Paris, France · UCLC41364 CU-MARK
- Karl Gerhardt to SLC, 2 November 1882 · Paris, France · UCLC41365 CU-MARK
- Karl and Hattie J. Gerhardt to SLC and OLC, 21 November 1882 · Paris, France · UCLC41382 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 9 December 1882 · Paris, France · UCLC41399 CU-MARK
- Hattie J. and Karl Gerhardt to OLC and SLC, 9 December 1882 · Paris, France · UCLC41400 CU-MARK
- Karl and Hattie J. Gerhardt to SLC and OLC, 12 December 1882 · Paris, France · UCLC41405 CU-MARK
- Hattie J. and Karl Gerhardt to SLC and OLC, 15 December 1882 · Paris, France · UCLC41406 CU-MARK
- Karl Gerhardt to SLC and OLC , 8 January 1883 · Paris, France · UCLC41427 CU-MARK
- Karl Gerhardt to SLC, 2 February 1883 · Paris, France · UCLC41441 CU-MARK
- Karl Gerhardt to SLC and OLC, 6 February 1883 · Paris, France · UCLC41472 CU-MARK
- Karl Gerhardt and Hattie J. Gerhardt to SLC and OLC, 25 February 1883 · UCLC41485 CU-MARK
- Karl Gerhardt to SLC and OLC, 7 March 1883 · Paris, France · UCLC41491 CU-MARK
- Karl Gerhardt to SLC and OLC, 23 March 1883 · Paris, France · UCLC41505 CU-MARK
- Hattie J. and Karl Gerhardt to OLC and SLC, 7 April 1883 · UCLC41524 CU-MARK
- Karl Gerhardt to SLC and OLC, 14 April 1883 · Paris, France · UCLC41527 CU-MARK
- Karl Gerhardt to OLC and SLC, 7 June 1883 · UCLC41571 CU-MARK
- Karl Gerhardt to OLC and SLC, 17 June 1883 · Paris, France · UCLC41578 CU-MARK
- Karl Gerhardt to SLC and OLC, 8 July 1883 · Paris, France · UCLC41595 CU-MARK
- Karl Gerhardt to SLC and OLC, 15 July 1883 · Paris, France · UCLC41603 CU-MARK
- Karl Gerhardt to SLC and OLC, 20 July 1883 · Paris, France · UCLC41609 CU-MARK
- Karl Gerhardt to SLC, 6 August 1883 · Paris, France · UCLC41621 CU-MARK
- Karl Gerhardt to SLC and OLC, 28 October 1883 · Paris, France · UCLC41678 CU-MARK
- Karl Gerhardt to SLC and OLC, 14 November 1883 · Paris, France · UCLC41698 CU-MARK
- Karl Gerhardt to SLC, 13 December 1883 · Paris, France · UCLC50185 CU-MARK
- Karl Gerhardt to OLC and SLC, 11 January 1884 · Paris, France · UCLC41739 CU-MARK
- Karl Gerhardt to OLC and SLC, 3 February 1884 · Paris, France · UCLC41766 CU-MARK
- Karl Gerhardt to OLC and SLC, 11 February 1884 · Paris, France · UCLC41779 CU-MARK
- Karl Gerhardt to SLC and OLC, 24 February 1884 · Grande Montrouge, France · UCLC41793 CU-MARK
- Karl Gerhardt to SLC, 19 March 1884 · UCLC41871 CU-MARK
- Karl Gerhardt to OLC and SLC, 5 April 1884 · Paris, France · UCLC42002 CU-MARK
- Karl Gerhardt to SLC, 25 April 1884 · Paris, France · UCLC42023 CU-MARK
- Karl Gerhardt to SLC, 27 May 1884 · Grande Montrouge, France · UCLC42159 CU-MARK
- Karl Gerhardt to SLC and OLC, 29 May 1884 · Paris, France · UCLC42164 CU-MARK
- Karl Gerhardt to SLC and OLC, 22 June 1884 · Paris, France · UCLC42183 CU-MARK
- Karl Gerhardt to SLC · 26 September 1884 · Philadelphia, Pa. · UCLC42298 CU-MARK
- Karl Gerhardt to SLC, 14 October 1884 · Hartford, Conn. · UCLC42308 CU-MARK
- Karl Gerhardt to SLC, 1 January 1885 · Hartford, Conn. · UCLC42373 CU-MARK
- Karl Gerhardt to SLC, 21 March 1885 · New York, N.Y. · UCLC42447 CU-MARK
- Karl Gerhardt to SLC, 1 April 1885 · New York, N.Y. · UCLC42460 CU-MARK
- Karl Gerhardt to SLC, 3 April 1885 · New York, N.Y. · UCLC42464 CU-MARK
- Karl Gerhardt to SLC, 4 April 1885 · New York, N.Y. · UCLC42466 CU-MARK
- Karl Gerhardt to SLC, 4 April 1885 · New York, N.Y. · UCLC42465 CU-MARK
- Karl Gerhardt to SLC, 6 April 1885 · New York, N.Y. · UCLC42468 CU-MARK
- Karl Gerhardt to SLC, 11 May 1885 · UCLC42499 CU-MARK
- Karl Gerhardt to SLC and OLC, 11 May 1885 · New York, N.Y. · UCLC42498 CU-MARK
- Karl Gerhardt to SLC and OLC, 21 May 1885 · New York, N.Y. · UCLC42509 CU-MARK
- Karl Gerhardt to SLC, 27 May 1885 · Mt. Vernon, N.Y. · UCLC42517 CU-MARK
- Karl Gerhardt to SLC, 29 May 1885 · New York, N.Y. · UCLC42519 CU-MARK
- Karl Gerhardt to SLC, 2 June 1885 · Mt. Vernon, N.Y. · UCLC42524 CU-MARK
- Karl Gerhardt to SLC, 6 June 1885 · New York, N.Y. · UCLC42526 CU-MARK
- Karl Gerhardt to SLC and OLC, 6 June 1885 · Mt. Vernon, N.Y. · UCLC42525 CU-MARK
- Karl Gerhardt to SLC, 7 June 1885 · Mt. Vernon, N.Y. · UCLC42528 CU-MARK
- Karl Gerhardt to SLC, 11 June 1885 · New York, N.Y. · UCLC42537 CU-MARK
- Karl Gerhardt to SLC, 23 June 1885 · Mt. McGregor, N.Y. · UCLC42545 CU-MARK
- Karl Gerhardt to SLC, 24 June 1885 · Mt. McGregor, N.Y. · UCLC42549 CU-MARK
- Karl Gerhardt to SLC, 26 June 1885 · Mt. McGregor, N.Y. · UCLC42551 CU-MARK
- Karl Gerhardt to SLC, 28 June 1885 · Mt. McGregor, N.Y. · UCLC42557 CU-MARK
- Karl Gerhardt to SLC, 3 July 1885 · Mt. McGregor, N.Y. · UCLC42561 CU-MARK
- Karl Gerhardt to SLC, 4 July 1885 · Mt. McGregor, N.Y. · UCLC42563 CU-MARK
- Karl Gerhardt to SLC, 8 July 1885 · Mt. McGregor, N.Y. · UCLC42566 CU-MARK
- Karl Gerhardt to SLC, 9 July 1885 · Mt. McGregor, N.Y. · UCLC42567 CU-MARK
- Karl Gerhardt to SLC, 19 July 1885 · Mt. McGregor, N.Y. · UCLC42575 CU-MARK
- Karl Gerhardt to SLC, 25 July 1885 · Mt. McGregor, N.Y. · UCLC42587 CU-MARK
- Karl Gerhardt to SLC, 26 July 1885 · Mt. McGregor, N.Y. · UCLC42589 CU-MARK
- Karl Gerhardt to SLC, 27 July 1885 · Mt. McGregor, N.Y. · UCLC42590 CU-MARK
- Karl Gerhardt to SLC, 22 August 1885 · UCLC42643 CU-MARK
- Karl Gerhardt to SLC, 10 December 1885 · UCLC42795 CU-MARK
- Karl Gerhardt to OLC and SLC, 26 February 1886 · Hartford, Conn. · UCLC42885 CU-MARK
- Karl Gerhardt to SLC, 3 March 1886 · New York, N.Y. · UCLC42890 CU-MARK
- Karl Gerhardt to SLC, 14 May 1886 · Hartford, Conn. · UCLC42943 CU-MARK
- Karl Gerhardt to SLC, 20 September 1886 · Hartford, Conn. · UCLC43054 CU-MARK
- Karl Gerhardt to SLC, 24 September 1886 · Hartford, Conn. · UCLC43066 CU-MARK
- Karl Gerhardt to SLC, 7 December 1886 · Hartford, Conn. · UCLC43124 CU-MARK
- Karl Gerhardt to SLC, 21 December 1886 · Hartford, Conn. · UCLC43171 CU-MARK
- Karl Gerhardt to SLC, 11 January 1887 · Hartford, Conn. · UCLC43199 CU-MARK
- Karl Gerhardt to SLC, 14 January 1887 · Hartford, Conn. · UCLC43201 CU-MARK
- Karl Gerhardt to SLC, 22 September 1887 · Hartford, Conn. · UCLC43775 CU-MARK
- Karl Gerhardt to SLC, 24 December 1887 · Hartford, Conn. · UCLC43870 CU-MARK
- Karl Gerhardt to SLC, February 1888 · UCLC50187 CU-MARK
- Karl Gerhardt to SLC, 7 October 1889 · UCLC44697 CU-MARK
- Karl Gerhardt to SLC, 19 October 1889 · Hartford, Conn. · UCLC44721 CU-MARK
- Karl Gerhardt to SLC, 22 October 1889 · UCLC44724 CU-MARK
- Karl Gerhardt to SLC, 25 October 1889 · Hartford, Conn. · UCLC44728 CU-MARK
- Karl Gerhardt to SLC, 5 December 1889 · UCLC44803 CU-MARK
- Karl Gerhardt to SLC, 12 December 1889 · UCLC44818 CU-MARK
- Karl Gerhardt to SLC, 8 February 1890 · Hartford, Conn. · UCLC44949 CU-MARK
- Karl Gerhardt to SLC, 5 May 1909 · New Orleans, La. · UCLC40230 CU-MARK
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