The Bank of Gilbert was built in 1917. Abe Cosby, one of the men instrumental in creating the bank, came to Gilbert to invest in land and open a real estate office. Bill Andersen, one of the bank's board members, was part of the first Gilbert pioneering family that settled on a homestead in 1891. The bank safe, built in the middle of the bank, still exists in the building and was even used to deliver a baby in the 1970's. In 1989 the building became an Allstate Insurance agency, and it has also served as a drugstore, restaurant, and doctor's office.