William Peirson was born 2 May 1793 in Massachusetts to Zachariah Pierson (1750-1827) and Sarah Sandford (1754-1833) and died 17 April 1862 Richmond, Berkshire County, Massachusetts of unspecified causes. He married Nancy Richards (1792-1852) 4 March 1819 in Richmond, Berkshire County, Massachusetts.
Marriage & Family
- Edwin Dwight Peirson (1819-1885)
- Eliza Ann Peirson (1822-1846) - married to cousin Joseph William Richards (1829-1846), who died on The Mormon Battalion march
- Amelia Elizabeth Peirson (1825-1851) - polygamous wife to her uncle Willard Richards (1804-1854), the LDS Apostle
- Levi Richards Peirson (1827-1899)
- Albert Howe Peirson (1829-1839)
- Susan Sanford Peirson (1831-1878) - polygamous wife #3 to her cousin Franklin Dewey Richards (1821-1899).
Children
| Name | Birth | Death | Joined with |
| Edwin Dwight Peirson (1819-1885) | |||
| Eliza Ann Peirson (1822-1846) | 14 April 1822 Richmond, Berkshire County, Massachusetts | 12 October 1846 Winter Quarters, Douglas County, Nebraska | Joseph William Richards (1829-1846) |
| Amelia Elizabeth Peirson (1825-1851) | |||
| Levi Richards Peirson (1827-1899) | |||
| Albert Howe Peirson (1829-1839) | |||
| Susan Sanford Peirson (1831-1878) | 13 December 1831 Richmond, Berkshire County, Massachusetts | 2 March 1878 Wanship, Summit County, Utah | Franklin Dewey Richards (1821-1899) |
Siblings