The postmaster in South Hadley Canal or Falls
| name | date | location | |
| William Bowdoin, Jr. | Jan. 21, 1820 | South Hadley Canal | |
| Joseph Carew | Aug. 8, 1833 | ||
| Daniel B. Gillett | July 27, 1841 | ||
| May 25, 1844 | South Hadley Falls | ||
| Obediah P. Ingraham | May 9, 1845 | ||
| Otis Goodman | June 5, 1849 | ||
| Obediah P. Ingraham | June 21, 1853 | ||
| James P. Benton | Nov. 18, 1857 | ||
| Benjamin C. Brainard | Sept. 9, 1858 | ||
| Hiram Smith Jr. | July 11, 1861 | ||
| John Kirkpatrick | July 2, 1885 | ||
| David C. Donaldson | June 2, 1897 | ||
| Gerbertrum E. Bliss | Jan. 21, 1898 | ||
| Aug. 1, 1906 | South Hadley Falls station Holyoke |