Wales | New South Wales | British Museum | Museum of Modern Art | Prince of Wales | Charles, Prince of Wales | Metropolitan Museum of Art | Prince | University of New South Wales | American Museum of Natural History | Victoria and Albert Museum | Natural History Museum | San Francisco Museum of Modern Art | Prince Charles | Honolulu Museum of Art | museum | Prince (musician) | Whitney Museum of American Art | Newcastle, New South Wales | Museum of Fine Arts, Boston | South Wales | Los Angeles County Museum of Art | Solomon R. Guggenheim Museum | Wales national football team | Prince William, Duke of Cambridge | Prince Albert | National Air and Space Museum | Brooklyn Museum | Ryde, New South Wales | National Baseball Hall of Fame and Museum |
Dr. Gravely also donated a variety of sculptures, carvings and bronzes to other institutions, including the Prince of Wales Museum, the Lucknow Museum and Dr. Ananda Coomaraswami's Museum in Boston.
Wittet designed some of Bombay's best known landmarks: the Prince of Wales Museum, the Gateway of India, the Institute of Science, the Small Causes Court at Dhobitalao, the Wadia Maternity Hospital, Bombay House, the King Edward Memorial Hospital, and The Grand Hotel and other buildings at the Ballard Estate, by the Bombay Docks.
His collections can be found at varied places like Prince of Wales Museum (Mumbai), National Gallery of Modern Art (New Delhi), National Gallery of Modern Art, Mumbai, Jaganmohan Palace (Mysore), Moscow Academy of Art (USSR), Nagpur Museum (Nagpur) and Delhi Art Gallery.