Louis Sullivan (American, 1956-1924) was one of the most significant American architects of any era. His work provides a transition from the nineteenth century academic world to the twentieth century. Like his teacher and mentor, Henry Hobson Richardson he considered the decorative elements of his buildings with a particularly keen sense of the aesthetic movement tempered with a strong architectural rationalism. The Chicago Stock exchange of 1893 was one of Adler (Dankmar) and Sullivan's major commissions, showing a modern aesthetic when compared with the more Beaux Arts styles of some of the buildings at the contemporary World's Columbian Exposition in Chicago.

We have 5 objects that Louis Henry Sullivan has been involved with.

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<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/18050521/ |title=Louis Henry Sullivan |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=27 June 2022 |publisher=Smithsonian Institution}}</ref>