Joan Doreen Curzon, b: 1898 -

^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}
^{1964 - 1973 Vietnam War}

^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1918 World War I}

^{1830 French Revolution}
^{1837 Queen Victoria assumes throne}
^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}




^{Lawrence Edward Tanner}^b.1891 d.



		^{Rev-Alfred .N.H. Curzon}^{b.1831 4th Lord Scarsdale d.1916}

	^{Assleton Nathaniel Curzon}^{b.1867 Kedleston, Nr. Derby. d.}	^{Blanche PocklingtonSenhouse}^{b.1837 Netherhall, Cumb. d.1875 Lower Berkeley, London}

^{Joan Doreen Curzon}^b.1898 d.		^{Houghton Charles Okeover}^{b.1825 d.1912}

	^{Mercy Lilian Okeover}^{b.1870 d.1936}	^{Hon-Eliza Anne Cavendish}^{b.1838 d.1921}