Sylvia Johnson Hawley was born 11 May 1832 in Livonia, Wayne County, Michigan, United States to Eber Johnson (1798-1859) and Sally Maria Goodale (1801-1849) and died 5 June 1909 Ravenwood, Nodaway County, Missouri, United States of unspecified causes. She married John Pierce Hawley (1826-1909) 22 October 1849 in Zodiac, Gillespie County, Texas.
Children
| Name | Birth | Death | Joined with |
| Abinadi Hawley (1851-1935) | |||
| Alma Hawley (1853-1927) | |||
| Sarah Hawley (1856-1924) | |||
| John Hawley (1858-1859) | |||
| Eber Pierce Hawley (1860-1932) | |||
| Sylvia Amelia Hawley (1862-1863) | |||
| William Nephi Hawley (1864-1864) | |||
| Isaac Zimri Hawley (1866-1944) | |||
| Gazelum Hawley (1868-1869) | 31 January 1868 Pine Valley, Washington County, Utah, United States | 10 February 1869 Pine Valley, Washington County, Utah, United States | |
| Lucy Lovnia Hawley (1870-1964) | |||
| Mary Caroline Hawley (1873-1956) | |||
| Francis Aaron Hawley (1875-1949) | |||
Siblings