William Jones would resign on January 15, 1901. William Woodburn was appointed to fill the vacancy on the same day and served the remainder of the term.
The primary source is the official manuscript returns in the 1898-1918 poll book, located at the Nevada State Archives in Carson City. The results were also printed in 1897-1898 Biennial Report of the Secretary of State.
Source for Popular Vote data: Nevada State Archives, "Attorney General," Election Returns of General Election held on the Eighth day of November A.D. 1898 (Carson City, 1898)