| Birth | 25 Oct 1784 | Sheffield, Berkshire County, Massachusetts | | | |
| Graduated | 1806 | Williamstown College - Williamstown, Berkshire County, Massachusetts | | | |
| Miscellaneous | 1807 | was licensed to preach by the Berkshire association (Congregational) | | | |
| Occupation | 1808 - 1810 | tutor at Williams College - Williamstown, Berkshire County, Massachusetts | | | |
| Occupation | Bet 1810 and 1827 | professor of mathematics and natural philosophy at Williams College | | | |
| Marriage | 13 Sep 1810 | Stockbridge, Berkshire County, Massachusetts - Sarah DEWEY | | | |
| Occupation | Aug 1822 | lectured for several years in Aug & Sept at the Medical College - Pittsfield, Berkshire County, Massachusetts | | | |
| Marriage | 19 May 1825 | Pittsfield, Berkshire County, Massachusetts - Olivia Hart POMEROY | | | |
| Occupation | 1827 - 1836 | established & was principal of the Berkshire Gymnasium (High School) - Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 1836 - 1850 | principal of the Rochester High School - Rochester, Monroe County, New York | | | |
| Residence | 1836 | Rochester, Monroe County, New York | | | |
| Occupation | Mar 1842 | lectured for many years at the Medical College in March & April - Woodstock, Windsor, Vermont, United States | | | |
| Occupation | 1850 - 1868 | professor of the natural sciences at the University of Rochester - Rochester, Monroe, New York, United States | | | |
| Residence | 15 Aug 1853 | Rochester, Monroe County, New York | | | |
| Retirement | 1861 | Rochester, Monroe County, New York | | | |
| Death | 15 Dec 1867 | Rochester, Monroe County, New York | | | |
| Burial | Aft 15 Dec 1867 | in the Mt. Hope Cemetery, Section A - Rochester, Monroe County, New York | | | |