Cleveland Baker would die in office on December 5, 1912. George B. Thatcher was appointed to fill the vacancy on December 6, 1912 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 returns were also printed in 1909-1910 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 8th day of November A.D. 1910 (Carson City, 1910)