Spencer Millard would die in office on October 24, 1895. The governor, James Budd, appointed William Jeter on October 25th to fill the vacancy and Jeter served the remainder of the term.
Source for Popular Vote data: California Secretary of State. California Blue Book, or State Roster, 1895, California Secretary of State (https://babel.hathitrust.org/cgi/pt?id=mdp.39015041451207&view=1up&seq=313) (accessed 15 Dec 2023)