Roy Russell Hirtle 1922–1994 Marjorie Jane Marson Coulter 1922– Verna Mary LaPierre 1924–2020 | | | | Clayton St. Clair Hirtle 1900–1991 Edith Wood Kennedy 1899–1972 | | | | Isaac Daniel Hirtle 1870–1938 Laura Margaret Rafuse 1870–1952 | | | | Augusta Schnerr 1845–1876 | | | | Susanna Elizabeth Conrad 1809–1897 | | |
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| | | Anderson Edward Coulter – |
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