| Father | Joseph Linnard Riddle (1853 - 1927) |
| Mother | Mercy Hackman (1859 - ) |
| Sibling | William Richard Riddle (1881 - 1936) |
| Sibling | Alfred Joseph Riddle (1884 - 1956) |
| Sibling | Mary Elizabeth Riddle (1885 - ) |
| Sibling | Philip Leonard Riddle (1887 - 1959) |
| Sibling | Theodora Mercy Riddle (1889 - 1891) |
| Sibling | Arthur Frank Riddle (1890 - 1974) |
| Sibling | Walter Harold Riddle (1891 - 1961) |
| Sibling | Reginald John Riddle (1895 - 1942) |
| Sibling | May Riddle (1897 - ) |
| Sibling | Norah Riddle (1898 - ) |
| Sibling | Emily Rose Riddle (1899 - 1928) |
| Sibling | Benjamin Albert Riddle (1900 - 1967) |