Alphonso Taft was born 5 November 1810 in Townshend, Windham County, Vermont, United States to Peter Rawson Taft I (1785-1867) and Sylvia Howard (1792-1866) and died 21 June 1891 San Diego, San Diego County, California, United States of unspecified causes. He married Fanny Phelps (1823-1851) 29 August 1841 in Townshend, Windham County, Vermont, United States. He married Louisa Maria Torrey (1827-1907) 26 December 1853 in Millbury, Worcester County, Massachusetts, United States.
Children
| Name | Birth | Death | Joined with |
| Charles Phelps Taft (1843-1929) | |||
| Peter Rawson Taft (1846-1889) | |||
| Mary Taft (1848-1848) | |||
| Alphonso Taft (1850-1851) | |||
| Alphonso Taft (1851-1852) | |||
| Name | Birth | Death | Joined with |
| Samuel Davenport Taft (1855-1856) | |||
| William Howard Taft (1857-1930) | 15 September 1857 Cincinnati, Hamilton County, Ohio, United States | 8 March 1930 Washington, D.C., United States | Helen Louise Herron (1861-1943) |
| Henry Waters Taft (1859-1945) | |||
| Horace Dutton Taft (1861-1943) | |||
| Frances Louise Taft (1865-1950) | |||
Footnotes (including sources)
| ‡ General |
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