He quit the Iowa project after five months, claiming his design was not followed, but the resemblance to the Illinois capitol suggests he strongly influenced the final Iowa design. One surviving 1839 sketch of the proposed capital shows a radically different layout, with two domes and a central tower.
After only five months on the Iowa project, he quit, claiming his design was not followed. However, the resemblance to the Illinois capitol suggests that he had a strong influence on the final design for Iowa's capitol building. A surviving 1839 sketch of the proposed capital shows a radically different layout with two domes and a central tower.