- 1 Andre Gueno (1736-1816) (Langueux, Brittany) m Marguerite Hydrio (1756- )
- 2 Pierre Gueno (1786-1857) (Langueux) m (1806) Jeanne Mathurine Saintillan (1780-1834) d of Louis Julien (1750-1819) and Elisabeth Marie Mace (1739-1811)
- 3 Jean Yves Gueno (1809-1890) m (1837) Louise Anne Ouezel (1813-1871) daughter of Pierre (1791- ) and Francoise Gouello (1789- )
- 4 Jean Francois Gueno (1838-1886) m (1873) Rose Plantin (1848-1895)
- 5 Marie Rose Gueno (1875- )
- 5 Virginie Marie Gueno (1877-1877)
- 5 Jeanne Marie Gueno (1878-1956)
- 5 Louis Jean Marie Gueno (1880-1935) [1] m (1908, St S) Louisa Jeanne Marie Michel (1884-1973) daughter of Nicolas Jean (1839-1912) and Jeanne Marie Leff (1850-1926)
- 6 Louis Jean Michel Gueno (1909-1977) (St S) [2] m (1930, St S) Helena Maud Laffoley (1901- ) daughter of Alfred George [3]
- 7 Louis Alfred Gueno (St S)
- 6 Charles Francis Gueno (1909-1969)(St S) m (1938, St O) Violet Gladys Mauger
- 7 Violet Gueno
- 7 John Philip Gueno
- 6 Edouard Jean Baptiste Gueno (1913-1959)(St S) m (1933) Doris Grace Saunders (1909-1988)
- 6 Francis Louis Gueno (St S) m Barbara Freeman
- 7 Jennifer Barbara Gueno
- 6 Arthur Maurice Gueno (St S) m Renee Lucie Holt, daughter of Arthur Alfred (1900-1987) and Lucie Marie Le Coq (1901-1982)
- 7 Suzanne Patricia Gueno
- 7 Alan Arthur Gueno
- 7 Richard John Gueno
- 7 Terence Patrick Gueno
- 6 Louis Jean Michel Gueno (1909-1977) (St S) [2] m (1930, St S) Helena Maud Laffoley (1901- ) daughter of Alfred George [3]
- 4 Pierre Louis Gueno (1839-1889) m (1867) Francoise Mathurine Boetard (1841- )
- 4 Louis Gueno (1841-1904) m 1 (1863) Louise Le Cardinal (1843-1871); 2 (1871) Marguerite Morin (1845- )
- 4 Francois Mathurin Gueno (1846- ) m (1868) Marie Louise Ecoublet (1845- )
- 4 Jean Francois Gueno (1838-1886) m (1873) Rose Plantin (1848-1895)
- 3 Francoise Marie Gueno (1817-1893) m (1843) Pierre Louis Douarin (1821-1863)
- 3 Rose Marie Gueno (1821- ) m (1840) Jacques Le Sage (1816- )
- 3 Jean Yves Gueno (1809-1890) m (1837) Louise Anne Ouezel (1813-1871) daughter of Pierre (1791- ) and Francoise Gouello (1789- )
- 2 Pierre Gueno (1786-1857) (Langueux) m (1806) Jeanne Mathurine Saintillan (1780-1834) d of Louis Julien (1750-1819) and Elisabeth Marie Mace (1739-1811)