Norman Moore, Dictionary of National Biography (1901)
“ At the end of 1849, after some months of travel in attendance on the Marquis of Bute, Duncan began practice in Edinburgh, chiefly as an obstetrician. He became a fellow of the Edinburgh College of Physicians in 1851, and in May 1853 began a course as an extra-academical lecturer on midwifery. He soon attained considerable practice, and in 1861 was made physician to the ward for diseases of women in the Edinburgh Royal Infirmary. He read numerous papers on obstetrics, and from 1873 to 1875 was president of the Obstetrical Society of Edinburgh. ”
