1785 - Birth of his biological mother Sarah Knight at Georgia, USA 

1786 - Birth of his biological father Robert O'Rear at North Carolina, USA 

1808/1809 - Marriage of parents at Greene County, Georgia, USA 

1813 - Birth at Tennessee, USA 

1819 - Birth of his wife Elizabeth Smith at Tennessee, USA 

1820 - Death of his biological mother Sarah Knight

1841 - Marriage with Elizabeth Smith

1842 - Birth of his son William O'Rear

1844 - Birth of his daughter Sarah O'Rear at Brown County, Illinois, USA 

1845 - Birth of his son James O'Rear at Illinois, USA 

18 Apr 1847 - Birth of his son Robert O'Rear at Montgomery County, Illinois, USA 

1849 - Birth of his daughter Nancy O'Rear

1850 - Census: at Southwest, Montgomery County, Illinois, USA 

1851 - Birth of his son John O'Rear

1854 - Birth of his daughter Martha O'Rear

10 Mar 1878 - Death of his biological father Robert O'Rear at Wilkes County, Georgia, USA 

25 Mar 1936 - Death of his son Robert O'Rear at Tower Hill, Shelby County, Illinois, USA 

27 Mar 1936 - Burial of his son Robert O'Rear at Montgomery County, Illinois, USA