Four or more generations of descendants of George Underwood Alley (1801-1879) if they are properly linked:
1. George Underwood Alley (1801-1879)
- 2. Frances Jane Smith Alley (1831-1837)
- 2. Catherine Amelia Alley (1833-1904)
- 2. Christina Augusta Underwood Alley (1833-1904)
- 2. Richard St George Underwood Alley (1835-1921)
- 2. George Underwood Alley (1836-1836)
- 2. George Underwood Alley (1837-1837)
- 2. Hugh R Underwood Alley (1838-1838)
- 2. George Underwood Alley (1840-1932)
- 3. Catherine Parnell Underwood Alley (1863-1954)
- 3. Frances Maude Underwood Alley (1865-1944)
- 3. Cecilia Mary Alley (1867-1938)
- 3. George Underwood Alley (1868-1959)
- 4. Marjorie Phyllis Alley (1909-1966)
- 4. Hazel Jean Alley (1910-2006)
- 4. George Underwood Alley (1912-1943)
- 4. Irene Maud Alley (1914-1994)
- 4. Myrtle J Alley (1914-)
- 4. Lionel Joseph Underwood Alley (1917-1979)
- 3. Roland Underwood Alley (1871-1923)
- 3. Emily Mildred S Alley (1874-1897)
- 3. Thomas Charles Underwood Alley (1876-1900)
- 3. Winifred Grace Alley (1879-1967)
- 3. Ethel Florence Underwood Alley (1882-1937)
- 3. Ruby Millicent Underwood Alley (1885-1964)
- 2. Arthur Underwood Alley (1841-1923)
- 2. Julian Underwood Alley (1842-1925)
- 3. Walter Underwood Alley (1879-1935)
- 3. George Edward Alley (1880-1957)
- 3. Alfred Ernest Underwood Alley (1882-1962)
- 3. Percival Underwood Alley (1884-1957)
- 3. Julian Underwood Alley (1888-1948)
- 3. Roland Underwood Alley (1890-1976)
- 3. James Underwood Alley (1891-1891)
- 3. Clarice Millie Underwood Alley (1892-1969)
- 4. Agnes Eileen Cramp (1912-1975)
- 4. Ruby Cramp (-1939)
- 4. Doris Cramp (1915)
- 4. Colin Alan Cramp (-)
- 4. Lillian May Cramp (1922-1958)
- 4. Jean Cramp (-)
- 4. Ethel Cramp (-)
- 3. Edith Matilda Alley (1895)
- 3. Harold J R Underwood Alley (1902)
- 3. Lindon Underwood Alley (-1959)
- 2. Cecilia Underwood Alley (1843-1919)
- 2. Trevor Underwood Alley (1844-1940)
- 2. Ernest Underwood Alley (1847-1935)
- 3. Mabel Winifred Alley (1875-1967)
- 3. George Underwood Alley (1877-1946)
- 4. Margaret W Alley (1903-)
- 4. Frederick Roy Alley (1905-1955)
- 4. Arthur R Alley (1908-)
- 3. Emily May Alley (1881-1935)
- 3. Frederick Underwood Alley (1883-1884)
- 3. Violet Frances Alley (1885-1943)
- 3. Arthur Ernest Underwood Alley (1879-1931)
- 3. Frank Underwood Alley (1888-1965)
- 3. Olive Pearl Alley (1890-1970)
- 3. Lindsay Arnold Underwood Alley (1892-1950)
- 3. Percy Edgar Alley (1895-1967)
- 2. Alfred Underwood Alley (1848-1911)
- 2. Walter Underwood Alley (1850-1850)
- 2. (unnamed) Alley (1857-1857)
- 2. (unnamed) Alley (1862-1862)