17 Sep 1873 - Birth at Astoria Cemetery, Astoria, Fulton County, Illinois, USA 

10 Oct 1878 - (5 years) Birth of his wife Matilda Thomas at Astoria Cemetery, Astoria, Fulton County, Illinois, USA 

May 1886 - (12 years) Birth of his son Glen Harmon at Illinois, USA 

07 Apr 1895 - (21 years) Marriage with Matilda Thomas at Woodland, Iroquois County, Illinois, USA 

23 Aug 1897 - (23 years) Birth of his son Cline Harmon at Woodland, Iroquois County, Illinois, USA 

Mar 1898 - (24 years) Birth of his son Don Harmon at Illinois, USA 

1901 - (27 years) Birth of his son Orley Harmon at Illinois, USA 

21 Jan 1903 - (29 years) Birth of his son Kenneth Harmon at Woodland, Iroquois County, Illinois, USA 

1910 - (36 years) Census: at Elyria, Valley County, Nebraska, USA 

12 Mar 1917 - (43 years) Death of his son Glen Harmon at Illinois, USA 

25 Oct 1928 - (55 years) Death of his son Orley Harmon at Macomb, McDonough County, Illinois, USA 

13 Feb 1939 - (65 years) Death of his wife Matilda Thomas at Toledo, Lucas County, Ohio, USA 

25 Sep 1959 - (86 years) Death at Waterloo, Black Hawk County, Iowa, USA 

1967 - Death of his son Cline Harmon at Waterloo, Black Hawk County, Iowa, USA 

1986 - Death of his son Don Harmon at Iowa, USA 

08 May 1988 - Death of his son Kenneth Harmon at Macomb, McDonough County, Illinois, USA