Mary E Leckonby, b: 1873 - Sutton on Hull, England

^{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}








^{William Frederick Leckonby}^{b.1891 Drypool, England d.1923 Myton, England}			^{Thomas Almyill Robinson}^{b.1839 Asenby, England d.}

		^{William Leckonby}^{b.1851 Patrington, England d.}	^{Jane Leckonby}^{b.1828 Thormanby, England d.1896 Sutton on Hull, England}

	^{Mary E Leckonby}^{b.1873 Sutton on Hull, England d.}		^{Richard Abraham Jackman}^{b.1827 Hedertown, America d.1876 Sculcoates, England}

		^{Mary Jane Jackman}^{b.1850 Sutton on Hull, England d.1876 Sutton on Hull, England}	^{Mary Ann Elwood}^{b.1833 Roscommon, Ireland d.1895 Hull, E.Yorkshire, England}