Sarah Lyman Arnold was born 14 February 1799 in Providence County, Rhode Island, United States to Daniel Lyman (1756-1830) and Mary Wanton (1761-1822) and died 19 February 1837 Providence, Providence County, Rhode Island of unspecified causes. She married Lemuel Hastings Arnold (1792-1852) 1818 in Rhode Island.
Children
| Name | Birth | Death | Joined with |
| Louisa L Arnold (1820-1904) | |||
| Lemuel Hastings Arnold (1822-1894) | |||
| Daniel Lyman Arnold (1825-1861) | |||
| Sally Lyman Arnold (1826-1899) | |||
| Richard Arnold (1828-1882) | 12 April 1828 Providence, Providence County, Rhode Island, United States | 8 November 1882 Manhattan, New York County, New York, United States | Abby Parker Coffin (1835-1904) |
| Mary Lyman Arnold (1829-1915) | |||
| Baby Daughter II Arnold (1834-1834) | |||
| Baby Daughter III Arnold (1835-1835) | |||
| Baby Daughter IV Arnold (1836-1836) | |||
| Baby Daughter V Arnold (1837-1837) | |||
| Cynthia Hastings Arnold (1837-1903) | |||
Siblings