| Birth | 3 Jan 1816 | Southampton, Hampshire County, Massachusetts | | | |
| Baptism | 11 Feb 1816 | Southampton, Hampshire County, Massachusetts | | | |
| Education | 1836 | Amherst College - Amherst, Hampshire County, Massachusetts | | | |
| Residence | 1838 | & was a school teacher - New York | | | |
| Residence | 1838 | Southampton, Hampshire County, Massachusetts | | | |
| Residence | 20 Nov 1838 | Onondaga County, New York | | | |
| Miscellaneous | 20 Nov 1838 | purchased lot 72 in the village of Amber, town of Otisco for $650 from George Stocking & his wife - Otisco, Onondaga County, New York | | | |
| Residence | 20 Apr 1839 | Otisco, Onondaga County, New York | | | |
| Miscellaneous | 20 Apr 1839 | purchased from Justus & Sylvia Newell lot 72 formerly in Marcellus Twp but now Otisco for $600 - Otisco, Onondaga County, New York | | | |
| Miscellaneous | 1840 | became an abolitionist - Massachusetts | | | |
| Residence | 1840 | Butler, Wayne County, New York | | | |
| Miscellaneous | 1841 | was associated with his cousin Sylvester Pomeroy running his store - Butler, Wayne County, New York | | | |
| Marriage | Bef 1843 | Anna "Ann" POMEROY | | | |
| Miscellaneous | 4 Oct 1843 | attended the Libery Party Convention and was chosen for the town committee of Southampton - Northampton, Hampshire County, Massachusetts | | | |
| Residence | 4 Oct 1843 | Southampton, Hampshire County, Massachusetts | | | |
| Miscellaneous | 29 Jan 1845 | sold lot 72 in Otisco to his cousin & brother-in-law Sylvester Pomeroy for $400 - Otisco, Onondaga County, New York | | | |
| Marriage | 23 Apr 1846 | Lucy Ann GAYLORD | | | |
| Election | 1847/48 | selectman - Southampton, Hampshire County, Massachusetts | | | |
| Occupation | 6 Sep 1850 | farmer - Southampton, Hampshire County, Massachusetts | | | |
| Occupation | 1853 | in the state house of representatives - Massachusetts | | | |
| Residence | 1854 | Lawrence, Douglas County, Kansas | | | |
| Miscellaneous | Aug 1854 | left Boston with 200 people to settle with the hopes of fighting against slavery - Atchison, Atchison County, Kansas | | | |
| Miscellaneous | 21 Dec 1854 | as agent for the Mass. Emigrant Aid Co.held a meeting about the company at Depot Hall - Kansas City, Wyandotte County, Kansas | | | |
| Occupation | 3 Jan 1855 | lawyer - District 1, Kansas | | | |
| Residence | 4 Jan 1855 | District 1, Kansas | | | |
| Miscellaneous | 11 Apr 1855 | as agent for the Emigrant Aid Company addressed emigrants arriving from New England - Kansas City, Wyandotte County, Kansas | | | |
| Miscellaneous | 1 May 1855 | & his brother-in-law Willis E. Gaylor drew lots by proxy for a colony on the Neosho River - Kansas | | | |
| Miscellaneous | 4 May 1855 | wrote a letter to the New England Emigrant Aid Company - Kansas | | | |
| Miscellaneous | 4 Jun 1855 | Boston, Suffolk County, Massachusetts | | | |
| Occupation | 15 Sep 1855 | farmer and agent - Southampton, Hampshire County, Massachusetts | | | |
| Residence | 15 Sep 1855 | with his second wife Lucy, next door to his brother King Burt Pomeroy - Southampton, Hampshire County, Massachusetts | | | |
| Miscellaneous | 21 Dec 1855 | Lawrence, Douglas, Kansas Territory, United States | | | |
| Miscellaneous | Abt Jun 1856 | Lawrence, Douglas, Kansas Territory, United States | | | |
| Miscellaneous | 1856 | was a delegate to the Republican National Convention | | | |
| Miscellaneous | Oct 1856 | was arrested with others on the Nebraska river by Col Cook by was released by Gov Geary - Kansas | | | |
| Miscellaneous | 14 Oct 1856 | and other wrote a letter to the editor about their journey to Kansas - Topeka, Shawnee County, Kansas | | | |
| Miscellaneous | 6 Nov 1856 | wrote a letter about the soldiers held prisoner in Lecompton - Lawrence, Douglas County, Kansas | | | |
| Miscellaneous | Bef 1857 | became an agent for the Northern Aid Society - Kansas | | | |
| Miscellaneous | Bef 1857 | became an agent for the Northern Aid Society - Kansas | | | |
| Miscellaneous | Abt May 1857 | Atchison, Atchison County, Kansas | | | |
| Miscellaneous | Abt Oct 1857 | Atchison, Atchison County, Kansas | | | |
| Occupation | Bet 1858 and 1859 | mayor - Atchison, Atchison County, Kansas | | | |
| Miscellaneous | May 1859 | was a member of the free state Osawatomie convention that organized the Republican party in kansas - Lawrence, Douglas County, Kansas | | | |
| Residence | 1859 | Atchison, Atchison County, Kansas | | | |
| Miscellaneous | 1860 | Kansas | | | |
| Occupation | 22 Jun 1860 | speculator - Atchison, Atchison County, Kansas | | | |
| Miscellaneous | Bet 1860 and 1861 | was the president of the relief committee during the famine in Kansas - Kansas | | | |
| Miscellaneous | 1860 | was a delegate to the Republican National Convention | | | |
| Miscellaneous | Mar 1861 | Kansas | | | |
| Occupation | Bet 4 Apr 1861 and 3 Mar 1873 | elected and served as a Republican to the United States Senate, representing Kansas - Washington, Washington County, District of Columbia | | | |
| Election | 4 Apr 1861 | one of the first US Senators from Kansas - Kansas | | | |
| Miscellaneous | 15 May 1861 | visited old friends - Otisco, Onondaga County, New York | | | |
| Residence | 1861 | with his wife and took his seat in the Senate - Washington, District of Columbia County, District of Columbia | | | |
| Miscellaneous | 7 Jan 1862 | as Senator and Senator Chandler presented a petition in Congress for the emancipation of slaves - Washington, District of Columbia County, District of Columbia | | | |
| Miscellaneous | 16 Aug 1862 | and EP Lewis were defendants in a petition by Samuel Davidson for a $950 mortgage on lots 22,23,24 - Sumner, Atchison County, Kansas | | | |
| Miscellaneous | 23 Aug 1862 | and Senator Harlan of Iowa demanded the arming of negroes which the President decided not to do - Washington, District of Columbia County, District of Columbia | | | |
| Miscellaneous | 26 Aug 1862 | was requested by president to organize immigration of free colored people for settlement in Cent. Am | | | |
| Miscellaneous | 24 Jun 1863 | stayed at the St. Nicholas Hotel - New York City, New York County, New York | | | |
| Miscellaneous | 28 Nov 1863 | spoke at the Town Hall as Senator from Kansas and made some remarks that were ridiculed in the paper - Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 2 Jan 1865 | senator in the U. S. Senate - Atchison, Atchison County, Kansas | | | |
| Residence | 3 Jan 1865 | with the Lariman Hone household - Atchison, Atchison County, Kansas | | | |
| Residence | 3 Jan 1865 | with the Lariman Hone household - Atchison, Atchison County, Kansas | | | |
| Residence | 1866 | at 322 I north and was a US Senator - Washington, District of Columbia | | | |
| Marriage | 20 Sep 1866 | Martha S MANN | | | |
| Miscellaneous | 20 Nov 1866 | made a speech at a railroad excursion. | | | |
| Miscellaneous | 20 Nov 1866 | made a speech at a railroad excursion. | | | |
| Election | 1867 | US senator in a re-election bid - Kansas | | | |
| Military | Jul 1867 | presided over a meeting for Woman's Rights and made a speech - Washington, District of Columbia | | | |
| Residence | 1867 | Kansas | | | |
| Occupation | 1867 | president at 61 Cedar - New York, New York County, New York | | | |
| Occupation | 1867 | US Senator at 353 H north - Washington, District of Columbia | | | |
| Residence | 1868 | at 318 H north and was a US Senator - Washington, District of Columbia | | | |
| Miscellaneous | 19 Dec 1868 | first to sponsor and introduce the women's suffrage ammendment before Congress - Washington, District of Columbia | | | |
| Miscellaneous | 9 Jan 1869 | gave $1000 toward the building of a congregational church in which his brother Lemuel was pastor - Muscotah, Atchison County, Kansas | | | |
| Residence | 1869 | at 1523 H nw and was a US Senator - Washington, District of Columbia | | | |
| Residence | 1870 | at 318 H n, and was a US Senator - Washington, District of Columbia | | | |
| Occupation | 8 Jul 1870 | U.S. Senator - Grasshopper, Atchison County, Kansas | | | |
| Residence | 1871 | at 1523 H nw and was a US Senator - Washington, District of Columbia | | | |
| Miscellaneous | Jan 1872 | was alleged by Sen Yorke to have had an improper relation with a woman - Baltimore, Baltimore County, Maryland | | | |
| Residence | 1872 | at 1523 H nw and was a US Senator - Washington, District of Columbia | | | |
| Residence | 1872 | [possibly] - New York | | | |
| Occupation | 1872 | [possibly] president of New Orleans, Baton Rouge & Vicksburg Railroad - New Orleans, Orleans Parish, Louisiana | | | |
| Residence | 21 Nov 1872 | at 1523 H St & had an account at the Freedman's Bank - Washington, District of Columbia | | | |
| Miscellaneous | 1873 | was defeated in his relection to the senate by John J Ingalls - Kansas | | | |
| Miscellaneous | Aft 1872 | was the chairman, Committee on Public Lands (Thirty-ninth through Forty-second Congresses) - Washington, Washington County, District of Columbia | | | |
| Miscellaneous | 30 Jan 1873 | was arrested for bribing other senators and members of the Kansas Legislature for their vote - Kansas | | | |
| Miscellaneous | 31 May 1873 | announced his retirement from politics | | | |
| Residence | 1873 | at 1339 K nw - Washington, District of Columbia | | | |
| Miscellaneous | 1873 | | | | |
| Miscellaneous | 11 Oct 1873 | was shot in the chest by Ex-Congressman M.F. Conway of Kansas but not seriously injured - New York Avenue, Washington D.C. | | | |
| Miscellaneous | 8 Jun 1874 | was arraigned for trial but a change of venue was requested to Osage County - Topeka, Shawnee County, Kansas | | | |
| Miscellaneous | 12 Mar 1875 | he bribery charges and attempt to corrupt were dismissed - Kansas | | | |
| Residence | 1875 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1876 | at 1339 K - Washington, District of Columbia | | | |
| Residence | 1877 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1878 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1879 | at 1339 K nw - Washington, District of Columbia | | | |
| Miscellaneous | 1880 | was a candidate for vice president on the American Anti-Secret Society - Kansas | | | |
| Occupation | 3 Jun 1880 | farmer - Washington, District of Columbia County, District of Columbia | | | |
| Residence | 3 Jun 1880 | at 1339 K Street North West with his wife Martha, - Washington, District of Columbia County, District of Columbia | | | |
| Occupation | 1880 | president at 150 Broadway - New York, New York County, New York | | | |
| Residence | 1881 | Washington, Washington County, District of Columbia | | | |
| Occupation | 1881 | president at 150 Broadway - New York, New York County, New York | | | |
| Residence | 1881 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1882 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1883 | at1339 K nw - Washington, District of Columbia | | | |
| Residence | 1884 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1885 | at 1339 K nw and was a president at 802 F nw - Washington, District of Columbia | | | |
| Residence | 1886 | at 1339 K nw and worked at 802 F nw - Washington, District of Columbia | | | |
| Residence | 1887 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1888 | at 1339 K nw - Washington, District of Columbia | | | |
| Residence | 1889 | at 1339 K nw - Washington, District of Columbia | | | |
| Will | 3 Dec 1889 | Washington, District of Columbia | | | |
| Miscellaneous | 4 Jan 1890 | was a witness at an inquest for the suicide of his brother-in-law, Willis Gaylord - Philadelphia, Philadelphia County, Pennsylvania | | | |
| Residence | 1890 | at 1339 K nw and was employed at National Safe Deposit Building at 1427 New York Avenue NW - Washington, District of Columbia | | | |
| Death | 27 Aug 1891 | Whittinsville, Worcester County, Massachusetts | | | |
| Burial | Aft 27 Aug 1891 | in Forest Hills Cemetery - Boston, Suffolk County, Massachusetts | | | |