History and residents
The building was built in 1793 for the family of Patrick Beales, a local corn and coal merchant and twice Mayor of Cambridge. After the death of Beales's daughters, the house was bought by George Darwin and his wife Maud Darwin in 1885. The Darwins extensively remodelled the house. The Darwins had five children:
- Gwendoline Mary Darwin, later Gwen Raverat (1885–1957), artist.
- Charles Galton Darwin (1887–1962), physicist.
- Margaret Elizabeth Darwin (1890–1974), married Sir Geoffrey Keynes.
- William Robert Darwin (1894–1970)
- Leonard Darwin (1899-1899)
- Cecily Darwin (born 1926) became an X-ray crystallographer and in 1951 married John Littleton of Philadelphia.
- George Pember Darwin (1928–2001) worked developing computers, and then (1964) married Angela Huxley, daughter of David Bruce Huxley. She was also a granddaughter of the writer Leonard Huxley and a great-granddaughter of Thomas Huxley, "Darwin's Bulldog".
- Henry Galton Darwin (1929–1992) was with the British Foreign Office, and married Jane Christie.
- Francis William Darwin (1932–1999) was a zoologist and taught at the University of London, and married in 1976.
- Edward Leonard Darwin (born 1934) became a civil engineer.
Lady Margaret Keynes also published a book about the house, House by the River: Newnham Grange to Darwin College
In 2003 a Blue Plaque commemorating Gwen Raverat and Period Piece was unveiled at Newnham Grange by Gwen's daughter Sophie Gurney, with Sophie's son William Pryor and Erasmus Darwin Barlow and his wife Biddy in attendance.
- Lady Darwin (Obituaries) The Times Friday, Feb 07, 1947; pg. 7; Issue 50679; col D
- Gwen Raverat Period Piece
- Margaret Keynes House by the River: Newnham Grange to Darwin College
- The Darwinian, Issue 4, 2003 
- Newnham Grange at British Listed Buildings