Senders: Heaton, John Henniker
- John Henniker Heaton to SLC, 18 June 1907 · London, England · UCLC36524 CU-MARK
- John Henniker Heaton to SLC, 28 June 1907 · UCLC36812 CU-MARK
- John Henniker Heaton to SLC, 30 June 1907 · UCLC36844 CU-MARK
- John Henniker Heaton to SLC, 6 July 1907 · Hurst, Berks., England · UCLC36956 CU-MARK
- John Henniker Heaton to SLC, 12 July 1907 · London, England · UCLC37028 CU-MARK
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