Exploring Milwaukee's Public Supply House

Where would Milwaukee be without its world-famous Public Supply House (which unfortunately does not exist)? An inspiring AI-generated video.
According to Amazon's Claude.ai, it's very doubtful that any entity known as the Milwaukee Public Supply House exists or ever existed: " I do not have any indication or evidence in my knowledge base that an entity called "The Milwaukee Public Supply House" exists or existed in the past. Searches in my data do not turn up any clear references to an organization by that specific name in Milwaukee. Without being able to find corroborating information about it, I cannot confirm whether such an organization existed or provide any details about its purpose or history if it did exist at some point. My knowledge has limits, so it's possible there was an entity with that name that is not included in my training data."
ChatGTP strongly disagrees, maintaining that: "The Milwaukee Public Supply House, also known as the Milwaukee Public School Administration Building, was designed by Henry C. Koch, a prominent architect based in Milwaukee. Here's more information about the architect and some construction details:
Architect: Henry C. Koch
Background: Henry C. Koch (1841-1910) was a significant architect in Milwaukee during the late 19th and early 20th centuries.
Notable Works: Koch designed many notable buildings in Milwaukee, including churches, schools, and commercial buildings. Some of his other works include the Pabst Theater and the Milwaukee Auditorium.
Architectural Style: Koch was known for his work in the Richardsonian Romanesque style, which is characterized by heavy, rough-hewn stone and brick construction, round arches, and a sense of massiveness.
Construction Details of the Milwaukee Public Supply House:
Location: 5225 W. Vliet St, Milwaukee, Wisconsin, USA.
Style: Richardsonian Romanesque
Construction Year: 1880
Materials: The building is constructed primarily of red brick with stone trimmings.
Features: The building features a prominent central tower, rounded arches, and other elements typical of Richardsonian Romanesque architecture.
Historical Significance:
The Milwaukee Public Supply House served as the headquarters for the Milwaukee Public School System, highlighting its historical significance in the city's educational infrastructure.
The building is an excellent example of the Richardsonian Romanesque style and is considered an important architectural landmark in Milwaukee."