| Name | Birth date | Relationship with Richard Langdon |
|---|
| Gatlin, Krista Lynn | April 27, 1950 | 2nd cousin once removed of the wife |
| Gatlin, Stephen Richard | April 28, 1951 | 2nd cousin once removed of the wife |
| Goetze, Heidi Marie | May 16, 1988 | 1st cousin once removed of the wife |
| Goetze, Tonya Michelle | August 13, 1973 | 1st cousin once removed of the wife |
| Goodwin, Darrell Keith | February 23, 1962 | 2nd cousin once removed of the wife |
| Goodwin, Hunter Logan | February 26, 1999 | 2nd cousin twice removed of the wife |
| Goodwin, Jenna Gayle | April 15, 1964 | 2nd cousin once removed of the wife |
| Goodwin, Phoebe Caroline | November 23, 1996 | 2nd cousin twice removed of the wife |
| Graf, Clifford | | Husband of the 1st cousin |
| Halburt, Mary | 1840 | 2nd great-grandmother |
| Hall, Rollin Anderson | April 26, 1967 | Nephew of the wife |
| Hamilton, Nicholas Alan | October 11, 1985 | Grandnephew of the wife |
| Hamilton, Rachel Alexandria | November 25, 1996 | Grandniece of the wife |
| Hamilton, Victoria Aileen | January 10, 1994 | Grandniece of the wife |
| Hartley, Guy | 1828 | Husband of the grandaunt |
| Hartley, Russell | November 01, 1904 | 1st cousin once removed |
| Heinkel, Allen Eugene | November 27, 1974 | 1st cousin once removed of the wife |
| Heinkel, Beth Ann | December 28, 1971 | 1st cousin once removed of the wife |
| Heinkel, Katelynn Nicole | July 07, 1999 | 1st cousin twice removed of the wife |
| Janczyk, Jadwiga | May 08, 1955 | Ex-wife of the 1st cousin |
| Joan | | Wife of the 1st cousin |
| Keane, Ann | | Great-grandmother |
| Ketner, Alec Christian | March 03, 1999 | 1st cousin twice removed of the wife |
| Kruse, Emma Lydia | June 16, 1882 | Grandmother of the wife |
| Lamb, Francis | | Husband of the 1st cousin |
| Landry, Ella | | Wife of the 1st cousin |
| Langam, Unknown | | 2nd great-grandfather |
| Langdon, Alyssa Marie | March 29, 1998 | Grandniece |
| Langdon, Andrew | January 15, 1992 | Grandnephew |
| Langdon, Arthur J | May 23, 1940 | 1st cousin |
| Langdon, Arthur J, Jr | June 23, 1938 | 1st cousin |
| Langdon, Arthur J., Jr | March 03, 1969 | 1st cousin once removed |
| Langdon, Arthur James | July 25, 1911 | Uncle |
| Langdon, Bobby | January 10, 1971 | 1st cousin once removed |
| Langdon, Brian | December 11, 1972 | 1st cousin once removed |
| Langdon, Catherine Sevela | April 10, 1916 | Aunt |
| Langdon, Claire Louise | June 10, 1944 | 1st cousin |
| Langdon, Cynthia | June 04, 1965 | 1st cousin once removed |
| Langdon, David | October 1980 | 1st cousin once removed |
| Langdon, Edward Hampton | July 11, 1950 | 1st cousin |
| Langdon, Elwood Francis | October 20, 1913 | Father |
| Langdon, Francis Xavier | 1876 | Granduncle |
| Langdon, Gertrude | 1906 | 1st cousin once removed |
| Langdon, Helen | | 1st cousin once removed |
| Langdon, James Aloysius | December 18, 1880 | Grandfather |
| Langdon, James Andrew | April 19, 1942 | Brother |
| Langdon, James Andrew, Jr. | June 08, 1969 | Nephew |
| Langdon, Jeanette | April 09, 1937 | 1st cousin |
| Langdon, Jeannette Catherine | June 24, 1909 | Aunt |
| Langdon, Jeri Anne | May 15, 1974 | Niece |