Interactive tree of Graham Philip Simmers
1945–1974♂ Graham Philip Simmers
1951–1997♀ Wendy Faye Clark
1910–1953♂ Wallace Hawthorn Kelleher Simmers
1912–2002♀ Phyllis Mary Pennington
1864–1918♂ Archibald Michie Simmers
1874–1941♀ Annie Spittle
1831–1911♂ Robert Simmers
1833–1904♀ Elizabeth Keith Annand
–♂ John Spittle
1885–1962♂ William Pennington
1888–1962♀ Jessie Ann McCrostie
1858–1917♂ Richard Pennington
1864–1919♀ Annabella Stevenson
1862–1906♂ James McCrostie
1867–1922♀ Marion Stewart Morton