All the while, the collections kept growing. Emil Torday collected in Central Africa, Aurel Stein in Central Asia, . Hogarth , Leonard Woolley and T. E. Lawrence excavated at Carchemish . Around this time, the American collector and philanthropist J Pierpont Morgan donated a substantial number of objects to the museum,  including William Greenwell 's collection of prehistoric artefacts from across Europe which he had purchased for £10,000 in 1908. Morgan had also acquired a major part of Sir John Evans 's coin collection, which was later sold to the museum by his son John Pierpont Morgan Junior in 1915. In 1918, because of the threat of wartime bombing, some objects were evacuated to a Postal Tube Railway at Holborn, the National Library of Wales (Aberystwyth) and a country house near Malvern . On the return of antiquities from wartime storage in 1919 some objects were found to have deteriorated. A temporary conservation laboratory was set up in May 1920 and became a permanent department in 1931. It is today the oldest in continuous existence.  In 1923, the British Museum welcomed over one million visitors.
* Grace Mildmay (c. 1552–1620), English noblewoman, diarist and medical practitioner.
* Grace Elliott (1754–1823), Scottish socialite and spy.
* Grace Kennedy (1782–1825), Scottish writer.
* Grace Darling (1815–1842), English heroine, involved in the rescue of survivors from the shipwrecked Forfarshire in 1838.
* Grace Frankland (1858–1946), English microbiologist.
* Grace Bussell (1860–1935), Australian heroine, involved in the rescue of the SS Georgette.
* Grace Raymond Hebard (1861–1936), American historian, suffragist, writer and political economist.
* Grace Livingston Hill (1865–1947), American novelist.
* Grace Hudson (1865–1937), American painter.
* Grace Benham (1876–1968), American silent film actress.
* Grace Valentine (1884–1964), American actress.
* Grace Drummond-Hay (1895–1946), British journalist and aviation pioneer.
* Grace Arnold (1899–1979), British actress.
* Grace Bradley (1913–2010), American film actress.
* Grace Kelly (1929-1982), American actress and princess consort of Monaco.
* Grace Jantzen (1948–2006), feminist philosopher and theologian.