| PERSON | PARENTS | GRANDPARENTS | GREAT-GRANDPARENTS | GREAT-GREAT-GRANDPARENTS |
| | | | | | | | | | |
| | | | | | 16 Ezekiel Tefft (ca. 1760 - ) | > |
| | |
| | | | | 8 Stephen Tefft (ca. 1790 - 4 January 1866) | |
| | |
| | | | | | | 17 Amie Wilcox (ca. 1764 - ) |
| | | | |
| | | | 4 John H. Tefft (December 1844 - 2 June 1916) | | |
| | |
| | | | | | 9 Rebecca _____ (ca. 1806 - ) | |
| | | | |
| | | 2 Elmer James Tefft, Sr. (12 April 1867 - 27 April 1935) | | | |
| | |
| | | | | | | | 20 William Boines ( - ) |
| | | | | | |
| | | | | | | 10 Daniel Boyens (17 October 1811 - 30 August 1900) | |
| | | | | | |
| | | | | | | | | 21 Betsy _____ ( - ) |
| | | | | | | | |
| | | | | 5 Ellen O. Boyens (December 1839 - 15 January 1936) | | |
| | | | |
| | | | | | 11 Mary Ann Frissell (1814 - 1893) | |
| | | | |
| 1 Robert Arthur Tefft (30 August 1894 - 22 January 1982) | | | | | | | | |
| | | | | 6 Robert McClure (ca. 1841 - ) | | |
| | | | |
| | | 3 Jessie Louise McClure (August 1866 - 28 November 1950) | | | |
| | |
| | | | 7 Janet _____ (ca. 1843 - ) | | |
| | |
Ancestors of Robert Arthur Tefft