See also

• Richard Underwood's parents: Richard Charles Underwood (1874-1920) and Matilda Smith (1878-1955)
• Richard Underwood's siblings: Florence Muriel Underwood (1905- ), Clarice Matilda Underwood (1906-1907), Charles Underwood (1909- ), Richard John Underwood (1910- ) and Eric Underwood (1911-1994)