11 Apr 1780 - Birth of his biological father William Hoff at Manassas, Prince William County, Virginia, USA 

1785 - Birth of his biological mother Elizabeth Dutton at Pennsylvania, USA 

23 Sep 1803 - Marriage of parents at Virginia, USA 

Mar 1812 - Birth at Washington County, Ohio, USA 

1839 - Death of his biological mother Elizabeth Dutton at Washington County, Ohio, USA 

12 May 1844 - Death of his biological father William Hoff at Cow Run, Washington County, Ohio, USA 

04 Dec 1876 - Death at Iowa City, Johnson County, Iowa, USA