Contrary to previous views of an acute shortage of chemists at the beginning of the twentieth century, this study found that the number of chemists identifiable by name in the Manchester area was substantial, even in 1902. Moreover, the majority were qualified to some extent. The total number of chemists and their degree of formal qualification increased rapidly during the period 1902-36. Employment data demonstrate that they worked not only in the chemical industry, but in a wide range of manufacturing industry and commerce. Only a relatively small proportion was employed in education. Research chemists were active in the area in the late nineteenth century: by 1936, 28% of Manchester chemists recorded their job title as research chemist or research manager. If Manchester were typical of Britain as a whole the number of chemists employed in 1902 would greatly exceed previous estimates. More speculatively, the number of chemists in Britain in 1902 may even have been comparable to that in Germany. (Contains 70 footnotes and 3 tables.)