Árbol interactivo de Philip R Holdup
1955–♂ Philip R Holdup
1922–♂ Clifford L Holdup
1926–♀ Mildred M Pennington
1891–1951♂ Richard Watson Pennington
1897–1937♀ Kathleen Mildred Sutton Dinnage
1900–1993♀ Mary McGrath
1865–1893♂ William Tipping Pennington
1861–1917♀ Annie Amelia Watson
1830–1887♂ Richard Pennington
1836–1929♀ Elizabeth Cash
–♂ Dr … Watson MRCS
1829–♀ Elizabeth Amelia Bowman