3 Dec 1832 - Birth of his biological father John Wallis at Henderson, Jefferson County, New York, USA 

13 May 1842 - Birth of his biological mother Helen Walker at Waukegan, Lake County, Illinois, USA 

17 Jan 1856 - Marriage of parents at Grandville, Kent County, Michigan, USA 

17 Dec 1858 - Birth at Grand Rapids, Kent County, Michigan, USA 

01 Jan 1862 - (3 years) Birth of his wife Grace Anderson at Joliet, Will County, Illinois, USA 

13 Mar 1881 - (22 years) Marriage with Grace Anderson at Lamont, Buchanan County, Iowa, USA 

15 Oct 1882 - (23 years) Birth of his son Howard Wallis at Perry Township, Davison County, South Dakota, USA 

07 Dec 1882 - (23 years) Death of his son Howard Wallis at Perry Township, Davison County, South Dakota, USA 

23 Sep 1883 - (24 years) Birth of his son Clarence Wallis at Perry Township, Davison County, South Dakota, USA 

30 Jul 1885 - (26 years) Birth of his daughter Anne Wallis at Perry Township, Davison County, South Dakota, USA 

15 May 1887 - (28 years) Birth of his daughter Edna Wallis at Perry Township, Davison County, South Dakota, USA 

15 Jul 1889 - (30 years) Birth of his son William Wallis at Perry Township, Davison County, South Dakota, USA 

03 Sep 1891 - (32 years) Birth of his daughter Eva Wallis at Perry Township, Davison County, South Dakota, USA 

04 Sep 1895 - (36 years) Birth of his son Fred Wallis at Perry Township, Davison County, South Dakota, USA 

08 Sep 1897 - (38 years) Birth of his daughter Florence Wallis at Mitchell, Davison County, South Dakota, USA 

30 May 1899 - (40 years) Birth of his son Lew Wallis at Perry Township, Davison County, South Dakota, USA 

02 Sep 1901 - (42 years) Birth of his daughter Joy Wallis at Perry Township, Davison County, South Dakota, USA 

02 Sep 1901 - (42 years) Birth of his son Jesse Wallis at Perry Township, Davison County, South Dakota, USA 

25 Mar 1902 - (43 years) Death of his daughter Joy Wallis at Mitchell, Davison County, South Dakota, USA 

30 Jun 1920 - (61 years) Death of his biological father John Wallis at Mitchell, Davison County, South Dakota, USA 

2 Oct 1920 - (61 years) Death of his biological mother Helen Walker at Yankton, Yankton County, South Dakota, USA 

21 May 1921 - (62 years) Death of his wife Grace Anderson at Mitchell, Davison County, South Dakota, USA 

17 Sep 1923 - (64 years) Death

30 Apr 1930 - Death of his son William Wallis at Los Angeles, Los Angeles County, California, USA 

07 May 1967 - Death of his son Lew Wallis at Mitchell, Davison County, South Dakota, USA 

12 Jan 1973 - Death of his son Fred Wallis at Kenosha, Kenosha County, Wisconsin, USA 

22 Mar 1973 - Death of his daughter Anne Wallis at Mitchell, Davison County, South Dakota, USA 

22 Mar 1973 - Death of his son Clarence Wallis at Mitchell, Davison County, South Dakota, USA 

26 Sep 1982 - Death of his daughter Edna Wallis at Mitchell, Davison County, South Dakota, USA 

11 Dec 1982 - Death of his daughter Eva Wallis at Boise, Ada County, Idaho, USA 

04 May 1990 - Death of his daughter Florence Wallis