| Birth | 16 May 1801 | Florida, New York | | | |
| Miscellaneous | 1821 | met Frances Miller when his sister brought her to his home - Florida, Montgomery County, New York | | | |
| Miscellaneous | 1823 | stopped to visit Frances on his journey "West" - Auburn, Cayuga County, New York | | | |
| Occupation | 1824 | junior partner at his father-in-law's law office - Auburn, Cayuga County, New York | | | |
| Marriage | 20 Oct 1824 | Auburn, Cayuga County, New York - Frances Adeline MILLER | | | |
| Residence (family) | From 20 Oct 1824 to 10 Oct 1872 | in the Seward House (built by his father-in-law, Elijah Miller, in 1816) - Auburn, Cayuga County, New York - Frances Adeline MILLER | | | |
| Miscellaneous | 21 Jan 1825 | Auburn, Cayuga County, New York | | | |
| Miscellaneous | 12 May 1825 | was appointed to a committee to make arrangements for a visit by General Lafayette - Auburn, Cayuga County, New York | | | |
| Miscellaneous | 4 Feb 1828 | Auburn, Cayuga County, New York | | | |
| Miscellaneous | 6 Mar 1830 | was appointed a delegate to represent Cayuga County at the Anti-masonic Convention - Albany, Albany County, New York | | | |
| Miscellaneous | 30 Sep 1830 | was nominated by the Antimasnoic party for Senator - New York State | | | |
| Residence | 30 Sep 1830 | Auburn, Cayuga County, New York | | | |
| Miscellaneous | 8 Dec 1830 | was a newly elected State Senator for the 7th District - Cayuga County, New York | | | |
| Miscellaneous | 14 Oct 1835 | Auburn, Cayuga County, New York | | | |
| Occupation | From 1 Jan 1839 to 31 Dec 1842 | Governor of New York - Albany, Albany County, New York | | | |
| Miscellaneous | 1843 | wrote letters to Frances while she was visiting Rochester - Auburn, Cayuga County, New York | | | |
| Occupation | From 4 Mar 1849 to 3 Mar 1861 | U.S. Senator - Auburn, Cayuga County, New York | | | |
| Occupation | 19 Jul 1850 | lawyer who owned real estate valued at $6,000 - Auburn, Cayuga County, New York | | | |
| Residence (family) | 19 Jul 1850 | with Frances' father, Elijah Miller, - Auburn, Cayuga County, New York - Frances Adeline MILLER | | | |
| Occupation | From 5 Mar 1861 to 4 Mar 1869 | U.S. Secretary of State under Presidents Abraham Lincoln and Andrew Johnson - Washington, District of Columbia | | | |
| Miscellaneous | 1867 | purchased Alaska from Russia for $7,200,000 | | | |
| Miscellaneous | 11 May 1872 | was one of the men who formed the corporation of he Auburn City Hospital - Auburn, Cayuga County, New York | | | |
| Miscellaneous | Bef Oct 1872 | considered Harriet Tubman a personal friend and his family gave freely when she asked to help others - Auburn, Cayuga County, New York | | | |
| Death | 10 Oct 1872 | Auburn, Cayuga County, New York | | | |