| Name | Birth date | Relationship with Richard Langdon |
|---|
| Stacey, Silas Stephen | May 19, 1988 | 1st cousin twice removed of the wife |
| Sullivan, Lawrence Edward | October 30, 1994 | Grandnephew of the wife |
| Sullivan, Montana Elizabeth | April 04, 1989 | Grandniece of the wife |
| Tesh, Nickolas Austin | July 02, 1990 | 1st cousin twice removed of the wife |
| Tesh, Nilsen Andrew | January 07, 1992 | 1st cousin twice removed of the wife |
| Thompson, Carl Wayne | November 30, 1930 | 2nd cousin of the wife |
| Thompson, Joni Virginia | July 14, 1956 | 2nd cousin once removed of the wife |
| Thompson, Judith Caroline | March 30, 1941 | 2nd cousin of the wife |
| Thompson, Karen Marie | January 24, 1953 | 2nd cousin once removed of the wife |
| Thompson, Melissa Gaye | July 20, 1964 | 2nd cousin once removed of the wife |
| Tippett, Candice Delynn | February 11, 1991 | Grandniece of the wife |
| Tippett, Daylon Adam | February 13, 1996 | Grandnephew of the wife |
| Tonnessen, Pamela Marie | November 10, 1963 | 1st cousin once removed of the wife |
| Tonnessen, Patricia A. | January 14, 1972 | 1st cousin once removed of the wife |
| Tonnessen, Penny Lynn | January 19, 1965 | 1st cousin once removed of the wife |
| Unknown, Carol | | Ex-wife of the 1st cousin |
| Unknown, Catherine | 1835 | 2nd great-grandmother |
| Unknown, Laura | | Wife of the 1st cousin once removed |
| Unknown, Robin | | Wife of the 1st cousin |
| Unknown, Susan | | Wife of the 1st cousin |
| Unknown, Unknown | | Husband of the 1st cousin |
| Whidden, Krystal Michele | March 29, 1984 | Grandniece of the wife |
| Whidden, Vanessa Danille | May 02, 1983 | Grandniece of the wife |
| Wingate, Joel Benjamin | | Grandfather of the wife |
| Wingate, Joel Benjamin II | | Uncle of the wife |
| Wingate, Rupert Earl | | Uncle of the wife |
| Wingate, Winnie Elizabeth | August 26, 1914 | Mother-in-law |
| Workowski, Cynthia | | Wife of the nephew |