First Northern Bank of Dixon was established in 1910 under a California state charter as Northern Solano Bank, and opened for business on February 1st of that year. On January 2, 1912, the First National Bank of Dixon was established under a federal charter, and until 1955, the two entities operated side by side under the same roof and with the same management. In an effort to increase efficiency of operation, reduce operating expense, and improve lending capacity, the two banks were consolidated on April 8, 1955, with the First National Bank of Dixon as the surviving entity.