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 Oct 1864 - Birth at Fairbank, Buchanan County, Iowa, USA 

18 Jul 1872 - (7 years) Birth of his wife Martha Dutton at Northfield, Washington County, Vermont, USA 

19 May 1891 - (26 years) Marriage with Martha Dutton at Alexandria, Hanson County, South Dakota, USA 

20 Apr 1892 - (27 years) Birth of his daughter Ethel Larson at Davison County, South Dakota, USA 

1 Jan 1895 - (30 years) Birth of his son Earl Wallis at Iowa, USA 

1896 - (31 years) Birth of his daughter Inez Wallis

Apr 1897 - (32 years) Death of his daughter Inez Wallis

17 Jan 1898 - (33 years) Birth of his daughter Minnie Wallis at Marathon, Buena Vista County, Iowa, USA 

1900 - (35 years) Census: at Jefferson, Greene County, Iowa, USA 

14 Jun 1901 - (36 years) Birth of his daughter Genevieve Wallis at Buchanan County, Iowa, USA 

19 Jul 1902 - (37 years) Birth of his son George Wallis at Buchanan County, Iowa, USA 

1905 - (40 years) Birth of his son Robert Wallis at Buchanan County, Iowa, USA 

1905 - (40 years) Death of his son Robert Wallis at Buchanan County, Iowa, USA 

21 Jan 1907 - (42 years) Birth of his daughter Ruth Wallis at South Dakota, USA 

1910 - (45 years) Census: at Mitchell Ward 4, Davison County, South Dakota, USA 

18 Feb 1911 - (46 years) Death of his son Roger Wallis at Davison County, South Dakota, USA 

18 Feb 1911 - (46 years) Birth of his son Roger Wallis at Davison County, South Dakota, USA 

30 Jun 1920 - (55 years) Death of his biological father John Wallis at Mitchell, Davison County, South Dakota, USA 

2 Oct 1920 - (55 years) Death of his biological mother Helen Walker at Yankton, Yankton County, South Dakota, USA 

1920 - (55 years) Census: at Davison County, South Dakota, USA 

Mar 1926 - (61 years) Burial of his son George Wallis at Graceland Cemetery, Mitchell, Davison County, South Dakota, USA 

Mar 1926 - (61 years) Death of his son George Wallis at Davison County, South Dakota, USA 

1930 - (65 years) Census: at Rapid City, Pennington County, South Dakota, USA 

1940 - (75 years) Census: at Underwood, Pennington County, South Dakota, USA 

19 Nov 1949 - (85 years) Death at Payette, Payette County, Idaho, USA 

Nov 1949 - (85 years) Burial at Riverside Cemetery, Payette, Payette County, Idaho, USA 

29 May 1964 - Death of his wife Martha Dutton at Caldwell, Canyon County, Idaho, USA 

2 Jun 1964 - Burial of his wife Martha Dutton at Riverside Cemetery, Payette, Payette County, Idaho, USA 

22 Sep 1968 - Death of his daughter Ethel Larson at Huron, Beadle County, South Dakota, USA 

Sep 1968 - Burial of his daughter Ethel Larson at Silver Creek Cemetery, Forestburg, Sanborn County, South Dakota, USA 

6 May 1982 - Death of his daughter Genevieve Wallis at Payette, Payette County, Idaho, USA 

03 Jan 1990 - Death of his daughter Ruth Wallis at Butte County, California, USA 

Jan 1990 - Burial of his daughter Ruth Wallis at Buffalo Gap Cemetery, Buffalo Gap, Fall River County, South Dakota, USA 

25 Dec 2000 - Death of his daughter Minnie Wallis at Lebanon, Linn County, Oregon, USA 

30 Dec 2000 - Burial of his daughter Minnie Wallis at Twin Oaks Memorial Gardens, Albany, Linn County, Oregon, USA