Her parents were born in Missouri; her father moved to California in 1850 as part of the California Gold Rush, but soon left mining to start a ranch.
[1] California Gibson was sent to Miss Head's School in Berkeley as a young woman,[2] but returned to work on the ranch soon after.
She grew rice and alfalfa, and raised prize-winning turkeys and a herd of Holstein Fresian cattle for dairy production.
[4] Beginning in 1922 she served as one of the three directors of the Glenn-Colusa Irrigation District; [5] she was appointed by the county board of supervisors to succeed her late brother as director.
[7] In 1930 California Gibson was elected treasurer of Colusa County.