Peoples Union Bank & Trust Company was founded in McKeesport on January 1, 1872. Needing larger quarters, the bank constructed an eight-story tower at Walnut Street and 5th Avenue in 1906 which contained 21 teller windows on the first floor and the vault in the basement. Professional offices for attorneys, dentists, and doctors, along with city council chambers and city offices, were located on the upper floors. People’s Union Bank & Trust merged into The Union National Bank of Pittsburgh on January 2, 1970, and then into Integra National Bank on August 23, 1991. After voicing concerns with the building’s condition, Integra vacated the Peoples Union Bank building in 1993, moving into the First National Bank of McKeesport building across the street. The relocation led to an exodus of upper floor tenants.