| Birth | 30 Jun 1817 | Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | | Woolen business. | | | |
| Marriage | 16 Dec 1840 | Mary Center JENKINS | | | |
| Residence | 28 Mar 1844 | and was a selectman - Pittsfield, Berkshire County, Massachusetts | | | |
| Residence | 25 Jun 1845 | and was a manufacturer - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 1845 | with his father and brothers built a new furnace - Copake, Columbia County, New York | | | |
| Occupation | 1 Nov 1849 | in partnership with his brothers after their father's death in the firm L.Pomeroy's Sons - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 1850 | with his brothers and brother-in-law reorganized the Copake Iron Company and became the owners - Copake, Columbia County, New York | | | |
| Occupation | 20 Sep 1850 | manufacturer - Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 29 Jan 1852 | a director and treasurer for the Pittsfield Woolen Company - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 11 Oct 1858 | and his brothers had a fire at the Satinet Mill that was quickly extinquished by the fire department - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 20 Jan 1859 | had horses pulling a sleigh runaway, causing the sleigh to be destroyed but no one was hurt - Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 7 Jul 1859 | part of an organization named Toronto Rolling Mill Company - Toronto, Province of Ontario, Canada | | | |
| Miscellaneous | 28 Jul 1859 | was chosen a board of director and chairman of the Executive Committee for the Pittsfield Woolen Co. - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 28 Jul 1859 | was a treasurer and general manager of the Pittsfield Woolen Company but declined the positions - Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 19 Jul 1860 | manufacturer - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 1861 | with his brother and brother-in-law sold the Copake Iron Works to John Beckley - Copake, Columbia County, New York | | | |
| Miscellaneous | Oct 1861 | showed his prized Breeding Mare, Agnes, with 9 of her colts at the fairgrounds inspection of Mares - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 2 Oct 1862 | and Gen Pomeroy were honored with Company B, Pomeroy Guard being named for them - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 9 Oct 1862 | had two valuable cows killed by a train when they escaped through a fence blown down by wind - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 24 Jun 1863 | stayed at the St. Nicholas Hotel - New York, New York County, New York | | | |
| Miscellaneous | 11 Feb 1864 | bought a furnace with Franklin B. Cone and George H. Power for $17,500 - West Stockbridge, Berkshire County, Massachusetts | | | |
| Miscellaneous | 11 May 1865 | invited a number of stage coach line owners to dine with him at his home - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 8 Jun 1865 | donated flannel drapery to be used for hospital clothing by the Ladies' Soldiers' Aid Society - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 29 Jul 1865 | listed as having an income 28.538 - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 19 Oct 1865 | his family left on the steamer Persia for Europe - New York, New York County, New York | | | |
| Miscellaneous | Jan 1866 | was reported to have broken his leg but not confirmed, possibly a hoax - London, England | | | |
| Miscellaneous | 23 Aug 1866 | was delayed from returning from Europe when a young daughter was badly burnt | | | |
| Miscellaneous | 23 Aug 1866 | was delayed from returning from Europe when a young daughter was badly burnt | | | |
| Election | 9 Apr 1868 | was elected a tiithingman - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 1868 | transferred land to the county for a new Court House; cost $35,000 - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 27 Aug 1868 | brought back from Europe plans for a English Landeau carriage which he had built and rode in - Pittsfield, Berkshire County, Massachusetts | | | |
| Miscellaneous | 14 Jan 1869 | purchased the Greylock Mill from Reuben R. Andrews - North Adams, Berkshire County, Massachusetts | | | |
| Miscellaneous | 29 Jul 1869 | was listed as having taxes in the amount of $77,143 and as Lemuel's son in the amount of $173,998 - Pittsfield, Berkshire County, Massachusetts | | | |
| Residence | 14 Oct 1869 | Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 1 Jun 1870 | woolen manufacturer - Pittsfield, Berkshire County, Massachusetts | | | |
| Election | 12 Oct 1871 | an honorary member of the Association of the 49th Mass. Regiment at its reunion - Great Barrington, Berkshire County, Massachusetts | | | |
| Residence | 12 Oct 1871 | on the corner of East Street & Bartlett Avenue - Pittsfield, Berkshire County, Massachusetts | | | |
| Occupation | 2 Jun 1880 | iron manufacturer - Pittsfield, Berkshire County, Massachusetts | | | |
| Death | 12 Dec 1889 | Pittsfield, Berkshire County, Massachusetts | | | |