Christian and Gustov Herter who were better know as the Herter brothers were outstanding American interioir designers. Their firm has existed from 1864-1906 expanding from a small upholstery warehouse to one of the biggest interior decorators in the United States. The Herter brothers had there own design office that implemented every aspect of interior design such as wall and ceiling decorations, decorative paneling and mantles, patterned floors, carpets, and draperies. Since the beginning they have offered a blend of furnishing styles from Neo-Greek and Renaissance to Contemporary English and Japanese designs. Because of this mixture, Herter brothers' interiors are very well recognized today.

Herter brothers can truly boast about their permanent clients such as the Vanderbilt's. Between 1880 and 1882 the Herter brothers decorated the Vanderbilt's' new mansion on Fifth Avenue. Also, they designed the interior for the mansion of Daruis Ogden Mills which is now a part of Rockefeller Center. Actually, the big historical part of Fifth Avenue was designed by Herter brothers such as the Jay Gould residence and other mansions. Presently, some examples of interior decorations and furnishings by Herter brothers can be seen in various American museums like Metropolitan Museum of Art in New York. However, very few interior designs made by Herter brothers remain together. Most of the examples are partially decorated by Herter brothers such as Legrand Lockwood Mansion in Norwalk Connecticut and Elm Park in New York. One of the biggest museums that are presenting furnishings and decorations by Herter brothers is the Lockwood-Mathews Mansion Museum. There you can see the drawing room, art gallery, and music room completely furnished and designed by those American interioir designers.

Sister Parish was also one of the most prominent American interioir designers. She was born in 1910 to a big five child family. Sister was his nickname because she was the only girl in the family. When she became a famous designer, the press mistakenly considered her a nun with a flair for designing interiors. However, Sister Parish was never a nun; she was a famous socialite. In 1930, Parish married an investment banker named Henry Parish and she had three children. In 1933 when the Depression broke out she founded her company in New Jersey to support the family finances during those gloomy times. And, soon it led her to be one of the most successful American interioir designers. Parish is recognized for designing the interior of the White House during Kennedy's presidency. She accomplished most of her works in collaboration with Albert Hadley, a decorator from Tennessee with whom she founded Parish-Hadley designs in 1962. Parish loved traditionalism while Hadley loved modernism. Parish was well known for her flair for designing patch work quilts, red lacquer secretaries, and painted furniture. Her have the spirit of aristocracy and modesty at the same time. That is why she is one of the great American interior designers.