- 1 Thomas Medder (1791, Devon) [1] m Elizabeth (1794-1851)
- 2 Elizabeth Medder (1819- ) m John Gloyns
- 2 Thomas John Medder (1827- ) m (1846, St H, Jer) Matilda Thomas (1822- )
- 3 Eliza Ann Medder (1847- )
- 3 Thomas James Medder (1849- ) m (1874) Harriet Stribling (1849- )
- 4 Matilda Maud Medder (1875- )
- 3 Charles Frederick Medder (1850- )
- 3 Clara Louisa Medder (1852-1852)
- 3 William Henry Medder (1854-1911) m (1880, Dunedin, NZ) Mary Brady (1858-1936)
- 4 William Henry Medder (1880-1974) m (1903, Invercargill, NZ) Elizabeth Rose Harding (1882-1919)
- 5 William Charles Medder (1904-1988)
- 5 Cecil Eddy Medder (1905-1907)
- 5 Tessie Elizabeth Medder (1906-1975)
- 5 Eileen Isobel Medder (1908-1985)
- 5 Sidney Joseph Medder (1909-1961)
- 5 Litta Rose Medder (1912-1912)
- 5 Ivy Irene Medder (1913-1998)
- 5 Cyril Robert Medder (1914-2000)
- 5 Sylvia Louvain Medder (1917-1968)
- 4 John Medder (1881-1881)
- 4 Florence Medder (1883-1884)
- 4 Florence Ann Medder (1884- )
- 4 Mabel Medder (1886-1951)
- 4 Charles Lacey Medder (1888-1918) m Elizabeth Ellen Armstrong (1892- )
- 5 Charles Andrew Medder (1915- )
- 5 Clarice Reah Medder (1918- )
- 4 Lillian Medder (1890-1920)
- 4 Elsie ELiza Medder (1891-1892)
- 4 Cecil Brady Medder (1892-1897)
- 4 Sidney Robert Medder (1894-1964)
- 4 Winifred Medder (1895-1990)
- 4 Litta Rose Medder (1897-1976)
- 4 Violet Edith Medder (1898-1899)
- 4 Cecil Brady Medder (1899-1966) m Jean Donaldson
- 4 Ivy Blanch Medder (1901-1984)
- 4 William Henry Medder (1880-1974) m (1903, Invercargill, NZ) Elizabeth Rose Harding (1882-1919)
- 3 Clara Medder (1856- )
- 2 John Medder (1828- ) [2] m (1850, St H) Mary Ann Squire, daughter of William
- 3 Mary Ellen Medder (1850- )
- 3 Anna Elizabeth Medder (1852- )
- 2 Hannah Medder (1832-1903) m (1851, St H) John Jarvis, son of Thomas
- 2 William Medder (1835- )
- 2 Samuel Courtis Medder (1841-1898) [3] m (1864, St S) Esther de la Haye (1844- ), daughter of George
- 3 Esther Medder (1865-1886) m (1890, St S) George Francis Lenoir, son of Jules Honore
- 3 Alice Mary Medder (1868- ) m (1890, St S) Harry John Purkis, son of Henry
- 3 Samuel Henry Medder (1870-1936)
- 3 Thomas Medder (1872- ) [4] m (1896, St S) Helena Maud Perchard (1871- ), daughter of Philip Gedeon [5]
- 4 Thomas Clarence Medder (1898- ) [6] m (1924, St H) Nellie Emma Jane de Thau, daughter of Arthur Edmund
- 3 Henry Medder (1874- ) [7] m (1899, St B) Mabel Hilda Piton (1876- ) daughter of John Philip
- 3 George Medder (1877- )
- 3 William Medder (1878-1979)
- 3 William Medder (1880-1881)
- 3 Hannah Medder (1881- ) m (1902, St S) George Victor Billot, son of George Victor
- 3 Ernest Medder (1882- ) [10] m (1909, All Saints) Harriet Anne Matilda Reid (1882- ) [11] daughter of Thomas [12]
- 3 Willie Medder (1884- ) [13] m (St S, 1911) Annie Louisa Hutchings (1884- )
- 3 Charles Medder (1886- )