| May 26, 1851 |  | First meeting at Town Hall; Green River Cemetery incorporated | 
| June 2, 1851 |  | First land acquisition of 12-1/2 acres | 
| October 7, 1851 |  | Consecration service held after grand procession through town | 
| October 26, 1851 |  | Deed to first lot purchased | 
| June 1852 |  | 8 acres acquired from Albert Smead | 
| July 30, 1853 |  | 2-1/2 acres acquired from Daniel Wells | 
| September 25, 1854 |  | 1-1/2 acres acquired from Levi Jones | 
| June 16, 1855 |  | 1 acre purchased from John Hamilton | 
| 1857 |  | Survey map produced | 
| October 5, 1857 |  | 3 acres bordering Petty Plain Road purchased by Catholic diocese | 
| 1866 |  | Fence at Wells plot erected | 
| June 9, 1870 |  | Death of Albert R. Field, designer of Green River Cemetery | 
| 1886 |  | 8+ acres purchased by Cephas Root | 
| October 5, 1887 |  | Death of William B. Washburn, former Massachusetts Governor | 
| June 1, 1901 |  | Everill L. Jenkins becomes superintendent | 
| 1902 |  | Wisdom Way entrance built; pillars donated by Frank O. Wells | 
| April 1908 |  | Superintendent's residence, Green River lodge, completed | 
| February 11, 1911 |  | 10-1/2 acres acquired from Franklin A. Pond | 
| 1915 |  | Bequest of Isabella Russell for mortuary chapel becomes available | 
| 1921 |  | Chapel erected | 
| May 1928 |  | Death of Everill L. Jenkins | 
| July 1928 |  | Willis E. Tuttle becomes superintendent | 
| March 1, 1929 |  | Whitman B. Wells of Deerfield becomes superintendent | 
| 1938 |  | Hurricane destroys about half of the trees at cemetery | 
| 1959 |  | Albert Karlsen begins work at Green River Cemetery | 
| 1970-75 |  | Front pillars removed | 
| 1975-76 |  | Central flower bed section sold for interments | 
| 1978 |  | Albert Karlson becomes superintendent | 
| July 21, 1980 |  | 4.91 acres sold to Franklin County Agricultural Society | 
| 1983 |  | Greenhouse removed after being destroyed by heavy snow | 
| 1993 |  | Albert Karlson retires | 
| 1993 |  | Ed Snow, Jr. becomes superintendent | 
| August 1993 |  | Cemetery interment books start using new section numbers | 
| 2001 |  | 150th anniversary of Green River Cemetery | 
| 2006 |  | Erosion of section 3 causes relocation of William Washburn and 48 others | 
| March 7, 2011 |  | Large mudslide in SE corner of Cemetery closes Water St and Meridian St below | 
| October 3, 2015 |  | Death of William B. Allen II, director at GRC for over 40 years | 
| Fall 2015 |  | Remediation of 2011 mudslide threatening Sections 24 & 26 |