Walter Sydney Lazarus-Barlow

Walter Sydney Lazarus-Barlow (born Walter Sydney Lazarus; 18 July 1865 – 15 January 1950) was an English physician who was professor of experimental pathology at the Middlesex Hospital. He was a specialist in cancer and was one of the first physicians to research the effects of X-rays and radium on that disease. In 1909, he gave the Croonian Lecture on the subject of Radioactivity and Carcinoma.

Early life Lazarus-Barlow was born to John Barnett Lazarus, a Russian-born Jew who converted to Christianity, and his wife Martha E. Lazarus (née Barlow). At the age of 21, he added his mother's maiden name to his own by deed poll. According to family legend, he was able to trace his ancestry to the important Torah scholar of the Middle Ages Moses Maimonides through his father, and to the writer Sarah Trimmer through his mother. They had a son, Percy, also a pathologist.

Career Lazarus-Barlow's first professional appointment was as a house physician at Brompton Hospital and assistant curator at the St George's Hospital museum under Humphry Rolleston. Walter O'Connor writes in British Physiologists 1885–1914, that Lazarus-Barlow's life was "probably saved by the new antistreptococcal serum from the Pasteur Institute, used for the first time in Britain". He served as a captain in the Royal Army Medical Corps from 1914 to 1918, He was survived by his wife and son and left an estate of £5782.

Selected publications A manual of general pathology for students and practitioners. J. & A. Churchill, London, 1898. (2nd 1904) The elements of pathological anatomy and histology for students. J. & A. Churchill, London, 1903.