12 May 1897 (+) is born in San Francisco, United States.

21 May 1918 (x) assaults an unidentified girl in San Francisco, United States.

21 May 1921 (x) is sentenced for assault on 12-year-old Mary Summers and committed to Napa State Mental Hospital in San Francisco, United States.

2 November 1923 (x) leaves the State Hospital to start a killing spree in Napa, United States.

20 February 1926 (-) raped and strangled Clara Newman in San Francisco, United States.

2 March 1926 (-) strangled Laura Beale in San Jose, United States.

1 June 1926 (-) raped and strangled Minnie May in Detroit, United States.

10 June 1926 (-) raped and strangled Lilian St. Mary in San Francisco, United States.

24 June 1926 (-) raped and strangled Anna Russel in Santa Barbara, United States.

16 August 1926 (-) raped and strangled Mary Nesbitt in Oakland, United States.

19 October 1926 (-) raped and strangled Beata Withers in Portland, United States.

20 October 1926 (-) strangled Virginia Grant in Portland, United States.

21 October 1926 (-) raped and strangled Mabel Fluke in Portland, United States.

18 November 1926 (-) raped and strangled Wilhelmina Edmunds in San Francisco, United States.

24 November 1926 (-) raped and strangled Florence Monks in Seattle, United States.

29 November 1926 (-) raped and strangled Blanche Myers in Portland, United States.

22 December 1926 (-) raped and strangled Elizabeth Beard in Council Bluffs, United States.

27 December 1926 (-) raped and strangled Bonnie Pace in Kansas City, United States.

28 December 1926 (-) strangled and raped Germania Harpin in Kansas City, United States.

27 April 1927 (-) raped and strangled Mary McConnell in Philadelphia, United States.

30 May 1927 (-) raped and strangled Jenny Randolph in Buffalo, United States.

3 June 1927 (-) raped and strangled Mary Sietsema in Chicago, United States.

8 June 1927 (-) strangled and raped Lola Cowan in Winnipeg, Canada.

9 June 1927 (-) raped and strangled Emily Patterson in Winnipeg, Canada.

1 November 1927 (x) Start of the trial against Nelson in Winnipeg, Canada.

13 January 1928 (-) is executed by hanging in Winnipeg, Canada.