Hannah Elizabeth Costello – | | | | | | | | Albert William Costello 1928–1990 Joyce Elizabeth Lovelock 1927–2002 | | | | Albert Edward Costello 1892–1971 Elizabeth Violette Bonnick 1893–1976 |
| | | William Leslie Lovelock 1895–1964 Georgina Harriet Walker 1903–1989 | | | | Sarah Ellen Mills 1861–1932 | | |
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