 thomas ustick walter (september 4, 1804 &ndash; october 30, 1887) was an american architect, the dean of american architecture between the 1820 death of benjamin latrobe and the emergence of h.h. richardson in the 1870s. he was the fourth architect of the capitol and responsible for adding the north (senate) and south (house) wings and the central dome that is predominately the current appearance of the u.s. capitol building. walter was one of the founders and second president of the american institute of architects. ==early life== born in 1804 in philadelphia, walter was the son of mason and bricklayer joseph s. walter and his wife deborah. walter received early training in a variety of fields including masonry, mathematics, physical science, and the fine arts. at 15, walter entered the office of william strickland, studying architecture and mechanical drawing, then established his own practice in 1830. ==works==  walter's first major commission was moyamensing prison, the philadelphia county prison. designed as a humane model in its time, the prison was built between 1832 and 1835. he first came to national recognition for his design of girard college for orphans (1833â48) in philadelphia, among the last and grandest expressions of the greek revival movement. walter also designed mansions, banks, churches, the hotel at brandywine springs, and courthouses.http://www.philaathenaeum.org/tuw/ in 1836, he designed the bank of chester county at west chester, pennsylvania; a decade later, he designed the 1846 chester county courthouse in greek revival style.[http://dsf.chesc
1804_births 1887_deaths 19th-century_American_architects Architects_from_Pennsylvania Architects_of_the_Capitol Burials_in_Philadelphia,_Pennsylvania Fellows_of_the_American_Institute_of_Architects Greek_Revival_architects People_from_Philadelphia,_Pennsylvania Presidents_of_the_American_Institute_of_Architects