- 1 Samuel James Glen Dewar (1785-1855) (Scotland) m Jane Brown (1791- ) (Cornwall)
- 2 Cornelius Glynn Dewar (1819- )
- 2 Orlando Robert Glendewar (1825-1901) m (Devon) Winifred Trethowan (1829-1901) (Devon)
- 3 Orlando Glenn Dewar (1848-1852)
- 3 Caroline Glendewar (1850- )
- 3 Orlando John Glendewar (1853- ) m (1877, All Saints) Georgina Rachel Touzel (1858-1899)
- 4 Orlando John Glendewar (1879- ) m (1912, St H) Ethel May Short (1889- )
- 5 Ethel May Glendewar )1912-1987) (St H)
- 4 William Henry Glendewar (1881- ) m (1902, St S) Elizabeth Ann Clarke (1881- )
- 5 William Henry Glendewar (1900- )
- 5 George Clarence Glendewar (1904- )
- 5 Lily May Glendewar (1906- )
- 5 Cecil Clark Glendewar (1908- )
- 4 George Ambrose Glendewar (1883-1917) m (1909, All Saints) Maud Grace Beatrice Janvrin (1886- )
- 5 George Ambrose Glendewar (1910-1935)
- 5 Maud Grace Glendewar (1911-2003)
- 5 Clarence John Glendewar (1914-2009)
- 4 Georgina Alice Glendewar (1885-1971) m Edward Robert Francis Male (1885-1957)
- 4 Clarence Thomas Glendewar (1887- )
- 4 Sidney Arthur Glendewar (1889- ) m Dorothy Clements (1894- )
- 4 Francis Henry Glendewar (1890-1892)
- 4 James Glendewar (1892- )
- 4 Ethel Maude Glendewar (1893-1967)
- 4 Edward Charles Glendewar (1895- ) m Lilian Maud Barritt (1898- ); 2 (1926, St Andrew) Eunice Le Bourgeois (1896- )
- 4 Harold Glendewar (1897-1971)
- 4 Orlando John Glendewar (1879- ) m (1912, St H) Ethel May Short (1889- )
- 3 Winifred Jane Glenn Dewar (1859-1930)
- 3 Thomas Glendewar (1862- )
- 3 Maria Glendewar (1864- )
- 3 William Glendewar (1866- )
- 2 Alexander Dewar (1826-1907) m (1854, Plymouth) Emmeline Cornish Trist (1832-1894)
- 3 Emma Jane Dewar (1854-1921) (Cornwall)
- 3 William Douglas Dewar (1857- ) (Cornwall)
- 3 Thomas Henry Glen Dewar (1861-1910) (Cornwall) m Jessie Gilbert (1862- )
- 4 Florence Dewar (1887- ) (Devon)
- 4 Thomas Gilbert Dewar (1890- ) (Devon)
- 4 Alfred Dewar (1895- ) (Devon)
- 3 Blanche Glen Dewar (1862- ) (Cornwall)
- 3 Alexander Glen Dewar (1864-1916) (Devon) m Emily Georgina Augusta Pike (1874-1933)
- 4 Lilian Georgina Dewar (1898-1928) (Hants)
- 4 Grace Florence Ann Dewar (1900- ) (Hants)
- 4 Alexander George Trist Dewar (1902-1966) (Hants)
- 3 John Glen Dewar (1866- ) (Devon)
- 3 Emily Dewar (1868- ) (Devon)
- 3 James Walter Dewar (1870-1875) (Devon)
- 3 Alfred Edward Dewar (1872-1875) (Devon)
- 3 Ann Dewar (1874- ) (Devon)
- 3 Bessie Trist Dewar (1876-1880) (Devon)
- 2 Jane Dewar (1829- )
- 2 Celia Dewar (1832- )