Albero interattivo di Thomas Parker Birkett
1876–1955♂ Frederick Parker Birkett
1876–1932♀ Sarah Rodman
1849–1933♂ Thomas Parker Birkett
1852–1947♀ Annie Elizabeth Rodman
1813–1880♂ Thomas Parker Birkett
1820–1914♀ Sarah B. Roydhouse
1785–1851♂ John Roydhouse
1798–1846♀ Francis Parkinson
1752–1792♂ Matthew Roydhouse
1756–1796♀ Rebecca Richardson
1776–1844♂ Francis Parkinson
1777–1868♀ Margaret Sharp
1755–♂ John Parkinson
1755–♀ Isabella Hodgson
1744–♂ Thomas Sharp
–♀ Ann Smith
–♂ William Rodman
–♀ Sarah …