In the 1896 California Great Register for the 12th Precinct, 43rd Assembly District, San Francisco County, Stewart Barnum appears as follows:
Voting No. 17, Registered No. 99, Barnum, Stewart, Age 34, Height 5ft 7½ in, Complexion Dk, Color of Eyes Blk, Color of Hair Blk, Occupation Janitor, Nativity Maryland, Local Residence 9 Miles Place, Floor Tp, Room All, Date of Registration July 25, 1896, Read the Constitution and Write Name Yes, Mark the Ballot Yes