Simpkin1930–1990Nama dan MargaR. Simpkin, Neil SimpkinLinimasaBirth1930Death1990HubunganSaudara kandungSimpkin (1920–2010)Simpkin (1920–2010)Simpkin (1920–1980)Orang tuaWilliam Simpkin (1895–1962)Edith Abbott (1894–1973)Sumberwikitree Simpkin-427