Garnet Oscar Hirtle 1941–2006 Diane Elizabeth Cotreau 1942–2004 | | |
| | Oscar Garnet Hirtle 1912–1992 Phyllis Helena Boehner 1922–2001 | | | | Charles William M. Hirtle 1874–1960 Mary Jane Walfield 1879–1978 | | | | Henry Edward Hirtle 1837– | | | | | | | | John Michael Hirtle 1765– Sophia Elizabeth Conrad – | | |
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