 Richard Upjohn moved his office into the Trinity building and in 1857 was one of the founders of the American Institute of Architects, which was established there. 

'February 23, 1857, by thirteen architects of ideals and vision. &nbsp;Throughout the years its members have contributed to the advancement of architecture and have encouraged the development of the allied arts, expressing the aspirations of our people, bringing into their lives inspiration, beauty, and comfort.&nbsp;Erected February 23, 1957Rededicated April 13, 2007 &nbsp;In celebration of the 150th Anniversary of the founding of the AIA'&nbsp;

American Institute of Architects founded