Senders: New York Sewage Disposal
- George L. Robinson for New York Sewage Disposal to SLC, 13 February 1908 · New York, N.Y. · UCLC37658 CU-MARK
- George L. Robinson for New York Sewage Disposal to SLC and Isabel V. Lyon, 29 August 1908 · New York, N.Y. · UCLC38008 CU-MARK
- George L. Robinson for New York Sewage Disposal to Isabel V. Lyon and SLC, 1 September 1908 · New York, N.Y. · UCLC38015 CU-MARK
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