This building was constructed in 1909 as the new home of McCornick and Company bankers and has continued to serve as a bank. McCornick and Company first came to Eureka in 1898, when they moved their bank, fixtures and all, from the mining town of Mercur, apparently intending to replace the George Arthur Rice Bank, which had folded in 1897. Around 1917, Eureka Banking Company took over the building, which later gave way to the Commercial Service Company in the 1960s. The building's current occupant is First Security Bank.