The artist's address in 1912 was Whistler studio, 8 Fitzroy St, London, when he showed a painting at the RA.
RA (1) 1912
Hardie (2009) Artists in Newlyn and West Cornwall (p323)
Johnson & Greutzner (1975) Dictionary of British Artists
Whybrow (1994) St Ives (1901-10 list pp 213-4)