With financial backing from Daly, Hennessy hired Frederick Kees, an architect from Minneapolis, to design one of Butte's most elegant buildings.

Inside, shoppers encountered marble staircases, oak counters, and solid bronze balustrades.

The upper floors of the original Hennessy Building in Butte became the headquarters for the Anaconda Company.

The Hennessy building in Butte later was owned by the Montana Power Company, which dissolved and became Touch America, a telecommunications entity.

When Touch America went out of business, the building was purchased in 2003 by Lawrence C. and Cynthia K. Farrar of Butte, Montana.