title: Margaret Greig
text: # Margaret Greig
  
  Dorothy Margaret Greig née Hannah (1922–1999) was an English mathematician who worked upon the theory of worsted spinning, especially the superdraft system invented by Geoffrey Ambler. During WW2, she worked on the analysis of strategic bombing. She married in 1948 and started lecturing at Leeds University in the same year. She subsequently lectured at Constantine Technical College and Durham University.
  
  