The principle assumed and acted upon was that beauty is founded upon order, and that convenience and utility were constituent parts ... the author has made it a rule never to consult books when he had to design a building. His considerations were first, the object of the building; second, the means appropriated for its construction; third, the situation it was to occupy; these served as guides in forming the outlines of his plan. Books are useful guides to the student, but when he entered on the practice of a profession, he should lay them aside and only consult them upon doubtful points, or in matters of details or, as mere studies, not to copy buildings from.[61] At Huntley the designer certainly considered convenience and utility, while keeping in mind "the object of the building ... the means appropriated for its construction" and "the situation it was to occupy." Area Architects, Circa 1820 During the first quarter of the nineteenth century, Dr. William Thornton, Charles Bulfinch, Robert Mills, Benjamin Latrobe and George Hadfield were all designing buildings in the stylistic mode of Huntley. Mason would have been aware of Dr. Thornton's work at Tudor Place in Georgetown, completed about 1815, and at Woodlawn Plantation, near Huntley, completed about 1805. Though Thornton did not die until 1828, he was already an elderly man by 1820, and Tudor Place is the last house he is known to have designed.[62] Mason would have been aware of Bulfinch's work from his visits to Boston, and Bulfinch arrived in this area in 1817. He immediately busied himself as Architect of the United States Capitol, however.[63] Robert Mills studied in Washington with Latrobe, and later designed buildings here, but he was not in Washington at the time Huntley was built.[64] Latrobe, who died in 1820, was at the height of his career and had ample commissions in the period of time from 1810-20. Hadfield, on the other hand, was available, needed work,[65] and had not yet begun his City Hall. Huntley would have provided not only suitable work, but a challenging site, and a suitable family for whom to work. George Hadfield Hadfield, a British subject, was born in Leghorn, Italy, about 1764.[66] His architectural training and collection of architectural prizes were outstanding when he arrived in this country in 1795 to superintend the construction of the United States Capitol. He, and his sister Maria Cosway, a painter, were both friends of Thomas Jefferson. Jefferson championed Hadfield here, though his actual recommendation to the Capitol job was from John Trumbull, the American artist. Soon difficulties began with Dr. William Thornton, who had won the competition for design of the Capitol and Hadfield lost his job.