Robert Albert Cottam 1905–1974 Adelaide Anna Cordes 1907–1982 | | |
Marjorie Cottam 1912–1978 | | |
| | Gertie Brocklebank 1882–1935 | | | | William Thomas Brocklebank 1853–1917 Margaret Barker 1855–1919 | | | | James Brocklebank 1830–1885 Margaret Woodward 1828–1904 | | | | Thomas Brocklebank 1804–1872 Margaret Pearson 1796–1868 | | | | Robert Christopher Pearson 1772–1834 Martha Molineux 1773–1847 | | |
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