6 Mar 1792 - Birth of his biological father James Abbott at Brandesburton, Yorkshire, England 

1806 - Birth of his biological mother Alice King at Blackburn, Lancashire, England 

1836 - Birth at Blackburn, Lancashire, England 

14 Oct 1874 - Death of his biological father James Abbott at Alburgh, Grand Isle County, Vermont, USA 

1874 - Burial of his biological father James Abbott at Mooers Forks, Clinton County, New York, USA