Contractors William A. O’Brien and Fergus Kelley were partners from 1893 to 1899. They built this home in 1897, where Fergus Kelley and his family lived until 1900. O’Brien went on to build some of Butte’s landmarks, including the Leonard Apartments…

William A. O’Brien, architect of the Leonard Apartments and the Kelly and Hennessy mansions, designed this handsome building of brown brick veneer in 1919. In 1920, the offices of District #1 moved from their longtime quarters at Butte High School…

Turn-of-the-twentieth-century social critics viewed apartment living as “the most dangerous enemy American domesticity has had to encounter.” Butte investors ignored this admonition, constructing the fashionable Leonard Apartments in 1906 to help…

Architect William A. O’Brien designed this grandly scaled Craftsman style bungalow for prominenet attorney Lewis O. Evans circa 1906. The stunning home incorporates Craftsman style characteristics, but its magnificent gabled dormers and prominent…

Architect William A. O’Brien designed and built this striking home in 1906 for ACM attorney Albert J. Campbell. The massive brick-veneered residence demonstrates O’Brien’s bold employment of the new Prairie style promoted by Chicago architect Frank…