found:LCCN 06-21527: Beale, L.S. The mystery of life, 1871(hdg.: Gull, Sir William Withey, 1816-1890; usage: Dr. Gull)
found:LCCN 07-25182: Baly, William. Reports on epidemic cholera, 1854:(heading, Gull, Sir William Withey, 1816-1890; usage: William W. Gull, M.D.)
found:Wikipedia, viewed Dec. 18, 2013:(Sir William Withey Gull, 1st Baronet of Brook Street (31 December 1816 - 29 January 1890) was a prominent 19th-century English physician)