 She is believed to have practised in London, although Sharp's name does not appear in any Church of England registration books or in witness signatures on any of the almost 500 London midwifery certificates surviving from 1661–1669.Neither does Sharp appear on any registrations of the Catholic Church at the time.Sharp may have been Puritan, which would account for her ability to read and write, for Puritan women, unlike Catholics or Anglicans, were often literate.